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  • Browse through Departements, Authors, Subjects or Years.

  • Try the Advanced Search.

  • You can always do a fulltext search through the whole site using the search box at the top of your screen. Fulltext searching means that instead of limiting your search to the Title, Author or Abstract Field, you search through the whole document. A term only has to appear once to be found.
    Clicking on a certain folder shows you an extra search box which allows you te search only in this particular folder with the possibility to expand your search to the subfolders.

  • Search on Text strings: it is possible to search on a text string by putting the search string between brackets. Compare the results searching on "the easy retrieval" with or without brackets.

  • Combined searching is possible using the Boolean Operators OR, AND, NOT. It is important that all Boolean operators are caps:
    • OR: The OR operator is the default conjunction operator. This means that if there is no Boolean operator between two terms, the OR operator is used. The OR operator links two terms and finds a matching document if either of the terms or both exist in a document.
    • AND: The AND operator matches documents where both terms exist anywhere in the text of a single document.
    • NOT: The NOT operator excludes documents that contain the term after NOT.

  • Truncation: Adding a '*' to your search term will increase the chance you'll retrieve relevant documents. In this way, you'll have more results searching for 'network*' than for network without the Asterisk. This method allows you for example to search on the stem of a term: try searching on 'scien*' and on 'science' to see the difference. Use a '?' to replace a single character: if you search on 'te?t', you'll have as result text as well as test.
    Note: You cannot use a '*' or '?' symbol as the first character of a search.

  • Fuzzy searches: in cases you are not sure about the right spelling, it is possible to do a fuzzy search using the tilde(~): searching 'roam~' will have as result foam as well as roams.

  • When performing a search you can either specify a field. You can search for dissertations where the abstract contains the term PHP: 'abstract:php". It is possible to search on a certain term in the Title or Author using 'description:'. If you want to limit your results to a certain language, use 'language:dut', 'language:eng', 'language:fre' or 'language:ger' to retrieve Dutch, English, French or German dissertations.

  • Finding words within a specific distance away, i.e. a proximity search use the tilde, "~", symbol at the end of a Phrase. For example to search for a 'apache' and 'webserver' within 5 words of each other in a document use the search: ' "apache webserver"~5 '. Compare this to the search: ' "apache webserver"~20 '.

  • The search engine provides the relevance level of matching documents based on the terms found. To boost a term use the caret, "^", symbol with a boost factor (a number) at the end of the term you are searching. The higher the boost factor, the more relevant the term will be. For example, if you are searching for 'webserver' and 'apache' and you want the term 'apache' to be more relevant boost it using the ^ symbol along with the boost factor next to the term. You would type: 'apache^4 webserver'. By default, the boost factor is 1. Although the boost factor must be positive, it can be less than 1 (e.g. 0.2).

  • The search engine supports escaping special characters that are part of the query syntax. The current list special characters are + - && || ! ( ) { } [ ] ^ " ~ * ? : \ To escape these character use the \ before the character. For example to search for (1+1):2 use the query: '\(1\+1\)\:2'

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