Perhaps you should try some spelling variations:
dong hoang » hong hong
wang liang » wang yang
gene yang » gene bank
song seng » hong seung, dong sheng, hong sheng
hua gene » human gene, a gene, hua ren
yang kim » yong kim, kang kim, hyung kim
kim song » kim young, kim eung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong hoang) or (wang liang)) ya hua gene yang kim song seng ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong hoang) OR (wang liang)) ya hua gene yang kim song seng ;*.