Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
hua gene » human gene, a gene, hua ren
yang jun » yang jui, pang jun, yang jin
yang yi » yang di, yang xi, yang jui
yi hua » li hua, ya hua, yi hui
hong g » hong ng, hong w, hong a
hong 7 » hong w, hong a

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 yi hua gene ((yang jun) or (shang jin)) ((hong g) OR (hong 7)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang yi hua gene ((yang jun) OR (shang jin)) ((hong g) OR (hong 7)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang yi hua gene ((yang jun) or (shang jin)) ((hong g) OR (hong 7)) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang yi hua gene ((yang jun) or (shang jin)) ((hong g) OR (hong 7)) ;*.