You can search by file name, contents or modified date

To search by file name only use name:myfile.txt

To search file contents only use contents:my term

You can substitute letters, words and phrases with an asterisk name:myfile*

To search for an exact phrase use quote marks "my exact phrase"

To search for files modified on a specific date use YYYY-MM-DD modified:2017-08-05

Dates can be whole months or years modified:2017-08 or modified:2017

You can search within date ranges using square brackets and the TO keyword modified:[2017-08 TO NOW]

You can combine search terms using the AND keyword name:myfile.txt AND modified:[2017-08 TO NOW]

For more advanced searches use the query builder

Note these options may not be available when searching some cloud services