Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, truong thanh
long trinh » long trip
tan china » tuan china, than china, can china
china fan » china fax, china fall, china fur
wang wei » zhang wei
yang xi » yang di, yang jui
yang yi » yang di, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((long thanh) OR (long trinh)) tan china fan ((yang xi) or (yang yi)) ((wang wei) or (wang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((long thanh) OR (long trinh)) tan china fan ((yang xi) OR (yang yi)) ((wang wei) OR (wang zhi)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((long thanh) OR (long trinh)) tan china fan ((yang xi) or (yang yi)) ((wang wei) or (wang zhi)) ;".
• Adding a wildcard symbol may retrieve word variants: ((long thanh) OR (long trinh)) tan china fan ((yang xi) or (yang yi)) ((wang wei) or (wang zhi)) ;*.