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 hong » le hong, li cong, li rong
li song » li cong, li rong, jie song
wang » 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 OR wing) yan yang hua gene yang ((li hong) or (((li song) or (kim song)))) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wing) yan yang hua gene yang ((li hong) OR (((li song) OR (kim song)))) ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang OR wing) yan yang hua gene yang ((li hong) or (((li song) or (kim song)))) ghi ;".
• Adding a wildcard symbol may retrieve word variants: (wang OR wing) yan yang hua gene yang ((li hong) or (((li song) or (kim song)))) ghi ;*.