Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
duoc va » nuoc va, duong va, duoc lam
duoc ma » duoc lam
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va lam » van lam, va lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang xa hoi. hieu va lam ((((duoc va) OR (duoc ma))) or (duc va)) doanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu va lam ((((duoc va) OR (duoc ma))) OR (duc va)) doanh van cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. hieu va lam ((((duoc va) OR (duoc ma))) or (duc va)) doanh van cua tre*".