Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
va doanh » van doanh, va danh, hoa doanh
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
nang xa » nang x, lang xa, nang ma
van lam » van nam
dan cua » dan ca, ban cua, dai cua
van cua » vang cua, ban cua, nan cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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 van lam duoc ((va doanh) OR (vay doanh)) ((van cua) or (dan cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu van lam duoc ((va doanh) OR (vay doanh)) ((van cua) OR (dan cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. hieu van lam duoc ((va doanh) OR (vay doanh)) ((van cua) or (dan cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu van lam duoc ((va doanh) OR (vay doanh)) ((van cua) or (dan cua)) te*.