Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
dong yang » dong hoang, yang yang, dan yang
yang john » young john, king john, yang jin
john wong » john song, john bonn
dong nan » dong sin, dong bin, dong cao
hua test » a test
wong sau » wong sam, wong siu, wong shiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((dong nan) or (dong yang))) or (wang yang)) ya hua test yang john wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong nan) OR (dong yang))) OR (wang yang)) ya hua test yang john wong sau ;.
• Adding a wildcard symbol may retrieve word variants: ((((dong nan) or (dong yang))) or (wang yang)) ya hua test yang john wong sau ;*.