Perhaps you should try some spelling variations:
signature stream » signatures stream, signature stamp, signature threat
signature trees » signature free, signature des, signature token
signature team » signature text, signatures stream, signature threat

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((signature team) OR (((signature stream) OR (signature trees)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((signature team) or (((signature stream) OR (signature trees))))".
• Adding a wildcard symbol may retrieve word variants: ((signature team) or (((signature stream) OR (signature trees))))*.