Perhaps you should try some spelling variations:
luong thanh » long thanh, truong thanh
lang yan » wang yan, wang yang, zhang yan
yan tuan » yan guan, yan yuan, anh tuan
tuan hua » tan hua, tuan vu, yuan hui
hua gain » heat gain, run gain, hua ban
yang lin » yang jin, wang lin, yang li
ying jin » yang jin, jing ji, yang jie

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan tuan hua gain ((yang lin) or (ying jin)) luong thanh ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan tuan hua gain ((yang lin) OR (ying jin)) luong thanh ;.
• Adding a wildcard symbol may retrieve word variants: lang yan tuan hua gain ((yang lin) or (ying jin)) luong thanh ;*.