Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
va doanh » van doanh, vay doanh, va danh
nang xa » nang x, lang xa, nang ma
van lam » van nam
duoc va » nuoc va, duc va, duoc ma
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
sac 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) OR (cac ky)) nang xa hoi. hieu van lam duoc va doanh van cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) OR (cac ky)) nang xa hoi. hieu van lam duoc va doanh van cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) OR (cac ky)) nang xa hoi. hieu van lam duoc va doanh van cua tre*.