Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
gene bank » gene banks, one bank, genomen bank
yang hua » wang hua, yang hui, ying hua
hua gene » human gene, a gene, hua ren
thi hong » tan hong
cong » congo, long, pong

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 yang hua gene bank ((thi hong) or (minh cong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang hua gene bank ((thi hong) OR (minh cong)) shu ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yang hua gene bank ((thi hong) or (minh cong)) shu ;*.