Perhaps you should try some spelling variations:
doan van » doan va, hoang van, luan van
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
duoc va » nuoc va, duoc ma, duong va
van cua » vang cua, ban cua, dan cua
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
va lam » van lam, va lap
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang xa hoi. hieu va lam ((duoc va) or (duc va)) doan van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang xa hoi. hieu va lam ((duoc va) OR (duc va)) doan van cua te.
• Adding a wildcard symbol may retrieve word variants: te san ky nang xa hoi. hieu va lam ((duoc va) or (duc va)) doan van cua te*.