Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
chen hadi » chen hao, khan hadi
wang ban » wang yan, wang dan, wang yang
tuan hua » tan hua, tuan vu
yuan hui » yuan fei, jaan hui, yang hui
yang lin » yang jin, wang lin, yang liang
yang li » yang di, yang xi, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang ban)) ((tuan hua) or (yuan hui)) ban ((yang li) OR (yang lin)) chen hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang ban)) ((tuan hua) OR (yuan hui)) ban ((yang li) OR (yang lin)) chen hadi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang ban)) ((tuan hua) or (yuan hui)) ban ((yang li) OR (yang lin)) chen hadi ;*".