Perhaps you should try some spelling variations:
thanh wang » thanh mung, thanh van
trang van » trang vang, frans van
wang yang » wang yan, wang liang, wang yanling
yang van » yang fan, yang dean, yang yang
yang jin » yang jie, yang jun, ying jin
hong hai » shang hai, zhong tai, dang hai
chang ha » chang mae

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang van) OR (trang van)) thanh wang yang jin ((hong hai) OR (chang ha)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yang van) OR (trang van)) thanh wang yang jin ((hong hai) or (chang ha)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong ((yang van) OR (trang van)) thanh wang yang jin ((hong hai) or (chang ha)) ;*.