Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
wang yong » wang yang, wang hyoung, wang yan
hua gene » human gene, a gene, hua ren
yang tan » yang fan, yang dean, liang tan
hong ghi » zhong zhi, hong hai
ka hua » ya hua, ka chuan
hong g » hong ng, hong w, hong 7

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 yong)) ka hua gene ((yang tan) or (ybhg tan)) ((hong ghi) OR (hong g)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yong)) ka hua gene ((yang tan) OR (ybhg tan)) ((hong ghi) OR (hong g)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yong)) ka hua gene ((yang tan) or (ybhg tan)) ((hong ghi) OR (hong g)) ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yong)) ka hua gene ((yang tan) or (ybhg tan)) ((hong ghi) OR (hong g)) ;*.