Perhaps you should try some spelling variations:
dong hoang » hong hong
chuan gene » human gene
yang yang » wang yang, wang yan
hai chuan » say chuan, ka chuan, tai chun
gene wang » gene bank, wen wang
wang lin » wang li, wang qin, yang lin
lin zong » lin ling, lin meng
zong ghi » hong ghi, zong he

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 (yang yang)) hai chuan gene wang lin zong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong hoang) OR (yang yang)) hai chuan gene wang lin zong ghi ;*.