Query in this case can contain one, two, or several words. For example: hotel casino or sky resort. For such queries will be found all documents, which conatain words from query: all these words, if "all" search mode is selected, or any of these words, if "any" search mode is selected. All selected documents is ordered by relevancy and Popularity Rank.
If you want take result more accurate, you may use logical query language. To do this, you should select logical query search mode, and type in search field your search words with logical operators: