Perhaps you should try some spelling variations:
yuhan wang » yan wang, yuhuan huang
binh thang » binh thanh, bin zhang, binh thuan
thang minh » tuan minh, zhang ming, chang min
yuan wang » yan wang, yuan kang, yuan chang
han binh » cao binh, han min, nam binh
cong van » congo can, duong van, cong sun

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yuhan wang) or (yuan wang)) han binh thang minh cong van ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yuhan wang) OR (yuan wang)) han binh thang minh cong van ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yuhan wang) or (yuan wang)) han binh thang minh cong van ;*.