Note that Boolean operators MUST be in upper case to work. Instead, functions must be chosen from the drop down menus. However, Excite does not always process a phrase search exactly as expected. It will ignore stop words within a phrase. No truncation searching is available.
All search terms look for a match regardless of upper and lower case are searched.
After running a search from the main page, a followup search box also has the language limit options. There is currently no way to search all language, and only one language can be searched at a time. No other limits are available on their regular search. Many common words and numbers will not be searched. By defaults, sites are sorted in order of relevance.