Perhaps you should try some spelling variations:
gene yang » gene bank
yan yang » yang yang, yao yang, dan yang
yang hua » wang hua, yang hui, ying hua
hua gene » human gene, a gene, hua ren
kim song » kim young, kim eung
li song » li cong, li rong, jie song
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang hua gene yang ((li song) OR (kim song)) ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang hua gene yang ((li song) OR (kim song)) ghi ;".
• Adding a wildcard symbol may retrieve word variants: wang yan yang hua gene yang ((li song) OR (kim song)) ghi ;*.