Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yang wang » yan wang, yang guang, yang liang
gene yang » gene bank
wang hui » wang hua, wang zhi, wang wei
hui gene » hy5 gene, i gene, iii gene
kim song » kim young, kim eung
li rong » yi rong, li cong, li song

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 wang hui gene yang ((((li rong) or (tan hong))) or (kim song)) seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang wang hui gene yang ((((li rong) OR (tan hong))) OR (kim song)) seo ;.
• Adding a wildcard symbol may retrieve word variants: yang yang wang hui gene yang ((((li rong) or (tan hong))) or (kim song)) seo ;*.