Perhaps you should try some spelling variations:
aid control » aids control, pid control, add control
control cap » control case, control c, control ch
yang jui » yang xi
ying can » ying chang, ying bank, ying yang
nan yan » nan ya, wang yan, qian yan
yang yi » yang xi
can aid » can asia

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: nan yan ((((((yang yi) OR (yang di))) OR (yang jui))) OR (yang judy)) ying can aid control cap ;~.
• Adding a wildcard symbol may retrieve word variants: nan yan ((((((yang yi) or (yang di))) or (yang jui))) or (yang judy)) ying can aid control cap ;*.