Perhaps you should try some spelling variations:
minh hongo » min hong
dong hoang » hong hong
hoang yan » huang yang, wang yan, zhang yan
hua gene » human gene, a gene, hua ren
gene yan » gene bank, ren yan, see yan
yan hua » tan hua, ya hua, wang hua
cong » congo, long, hong

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