Perhaps you should try some spelling variations:
luong thanh » long thanh, truong thanh
wang nan » wang yan, wang ban, wang dan
chia tan » chia lan, chen tan
chia wen » china won, ching wen, asia wen
wang lin » wang li, wang qin, yang lin
nan yan » nan ya, wang yan, qian yan
hai » hadi, haji, hari

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: wang nan yan ((chia tan) OR (chia wen)) wang lin ((luong thanh) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang nan yan ((chia tan) or (chia wen)) wang lin ((luong thanh) or (dang hai)) ;*.