Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yuan wang » yan wang, yuan kang, yuan chang
zhong zhi » zhang zhi, hong ghi, zhong tai
hua test » a test
yang lin » yang jin, wang lin, yang li
yang ka » yang fan, yang yao
ka hua » ya hua, ka chuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang ka hua test ((yang lin) or (yuan wang)) zhong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ka hua test ((yang lin) OR (yuan wang)) zhong zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang yang ka hua test ((yang lin) or (yuan wang)) zhong zhi ;*.