Perhaps you should try some spelling variations:
luong thanh » long thanh, truong thanh
china tan » china top, china two, china taiwan
long han » long chain, long thanh, long haul
hong hai » shang hai, zhong tai, dang hai
yan can » yan clan, man can, yan cong
yang li » yang lin, yang di, yang yi
yang xi » yang di, yang yi, yang jui
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan can china tan ((yang li) OR (yang xi)) ((((long han) or (luong thanh))) or (hong hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan can china tan ((yang li) OR (yang xi)) ((((long han) OR (luong thanh))) OR (hong hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan can china tan ((yang li) OR (yang xi)) ((((long han) or (luong thanh))) or (hong hai)) ;*".