Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
gene tang » gene bank
zhong tai » hong tan, zhong zhi
tang min » chang min, sang minh, yang mind
hong hai » shang hai, dang hai, hong tan
yang ya » yang yao, yang yi, yang ka
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 ya a gene tang min ((hong hai) or (zhong tai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ya a gene tang min ((hong hai) OR (zhong tai)) ;.
• Adding a wildcard symbol may retrieve word variants: dong yang ya a gene tang min ((hong hai) or (zhong tai)) ;*.