Perhaps you should try some spelling variations:
test using » tests using, tested using, testing using
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
test ying » test playing
wong sam » wong sau, kong sar, von sam
fang a » fang _, lang a, facing a
lai » laid

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan wang) or (wang yang)) fang a ((test ying) or (test using)) jin ((wong sam) OR (wong lai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan wang) OR (wang yang)) fang a ((test ying) OR (test using)) jin ((wong sam) OR (wong lai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) or (wang yang)) fang a ((test ying) or (test using)) jin ((wong sam) OR (wong lai)) ;*".