Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lam duoc » luat duoc, lam thuoc, tao duoc
thai cua » than cua, tai cuc, tri cua
nam duoc » nam thuoc, da duoc, dat duoc
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky lang xa hoi. hieu van ((lam duoc) OR (nam duoc)) va thanh ((vai cua) or (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky lang xa hoi. hieu van ((lam duoc) OR (nam duoc)) va thanh ((vai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky lang xa hoi. hieu van ((lam duoc) OR (nam duoc)) va thanh ((vai cua) or (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su xac ky lang xa hoi. hieu van ((lam duoc) OR (nam duoc)) va thanh ((vai cua) or (thai cua)) tre*.