Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
dang hadi » dang hai
yang min » yang mind, yang jin, yang lin
tang min » chang min, sang minh, yang mind
a gene » a genre, a gender, a gentle
ya a » a a, y a, ye a

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong yang) or (yang yang)) ya a gene ((yang min) or (tang min)) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (yang yang)) ya a gene ((yang min) OR (tang min)) dang hadi ;.
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (yang yang)) ya a gene ((yang min) or (tang min)) dang hadi ;*.