Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
tuan hua » tan hua, tuan vu
yuan hui » yuan fei, jaan hui, yang hui
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
ying hai » ying hooi, dang hai, hong hai

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 ((tuan hua) or (yuan hui)) ((yang yang) or (((tan yang) OR (tan yong)))) li ying hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ((tuan hua) OR (yuan hui)) ((yang yang) OR (((tan yang) OR (tan yong)))) li ying hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((tuan hua) or (yuan hui)) ((yang yang) or (((tan yang) OR (tan yong)))) li ying hai ;*".