By putting double quotes around a set of words, you are telling your search to consider the exact words in that exact order without any change. Quotes are usually unnecessary. By insisting on phrase search you might be missing good properties accidentally. For example, "in-ground pool" will miss properties that have a "whirlpool"
The default search behavior is to consider all the words in a search. If you want to specifically allow either one of several words, you can use the | operator. For example, [ranch pool|whirlpool ] will give you ranch listings with either pool or whirlpool, whereas [ ranch pool whirlpool ] (without the |) will show ranch listings that include both pool and a whirlpool.
"Laundry Room"|"Mud Room"
Attaching a minus sign immediately before a word indicates that you do not want listings that contain this attribute. The minus sign should appear immediately before the word and should be preceded with a space. For example, in the query [ in-ground pool ], the minus sign is used as a hyphen and will not be interpreted as an exclusion symbol; whereas the query [ in-ground -whirlpool ] will search for the words 'in-ground' but exclude references to whirlpool.
-pool -mudroom -"Corner Lot" -ranch
Attaching a plus sign immediately before a word indicates that you want a combination of search terms to be found on a each listing. For example, a search of ["hardwood", "great room"] would return listings that have great rooms, or that have hardwood. A search of [hardwood+"great room"] returns a listings that have both hardwood and great room attributes.