Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang wang » yang yang, yan wang, yang guang
gene yang » gene bank
li hong » le hong, li rong, lim chong
li cong » li rong, jiu cong
li song » li rong, kim song, jie song
wang a » wang _, fang a, lang a
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang wang a gene yang ((li hong) or (((li cong) OR (li song)))) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang wang a gene yang ((li hong) OR (((li cong) OR (li song)))) ghi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang wang a gene yang ((li hong) or (((li cong) OR (li song)))) ghi ;*".