More than one word within a query with no operator will create a Boolean AND search (only results containing all words will be shown).
Use of 2 or more query-lines will also perform a Boolean AND search (only results containing all terms will be shown).
Boolean operators such as AND, OR, NOT may be used within each query. For example, a search for “phytoplankton" OR "zooplankton” will show all pages containing either ‘phytoplankton’ or ‘zooplankton’. A search for “phytoplankton NOT zooplankton” will show pages containing ‘phytoplankton’ but not ‘zooplankton’.
Further query parameters such as wildcards (* or ?) or fuzzy search (~) may also be used.