Simple search

This page enables you to find content by case-insensitive text in any metadata element. For example: to search for content that contains words "air" or "soil" or both, enter air | soil. Entering air pollution or air & pollution will require the content to have both words.
Entering "air pollution" will require the content to have the exact phrase "air pollution".

Wildcards (*) can also be used. Wildcard requires at least four leading characters. Example: nois* | water

Words shorter than 3 letters are ignored.

Search type

Advanced search operators

http:// or https://
Any phrase that starts with a URL prefix is queried as an exact search.
A leading ampersand indicates that this word must be present in each row that is returned.
A leading vertical bar indicates that this word is optional in each row that is returned.
A leading exclamation mark indicates that this word must not be present in any of the rows that are returned.
Note: The ! operator acts only to exclude rows that are otherwise matched by other search terms. Thus, a boolean-mode search that contains only terms preceded by ! returns an empty result. It does not return "all rows except those containing any of the excluded terms."
no operator
By default (when neither of the above operators is specified) the word must be present in each row that is returned. So by default the search engine uses & if no operator is specified.
( )
Parentheses group words into subexpressions. Parenthesized groups can be nested.
A phrase that is enclosed within double quote (""") characters matches only rows that contain the phrase literally, as it was typed. The search engine splits the phrase into words, performs a search in the FULLTEXT index for the words. Nonword characters need not be matched exactly: Phrase searching requires only that matches contain exactly the same words as the phrase and in the same order. For example, "test phrase" matches "test, phrase".
If the phrase contains no words that are in the index, the result is empty. For example, if all words are either stopwords or shorter than the minimum length of indexed words, the result is empty.