Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
vu khac » vu kham, vu khanh, bui khac
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van lam » van nam
cua tuc » cua duc, cua thuoc, luat tuc
lam lo » nam lo, lam co, cam lo
lo van » le van, vo van, so van
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu khac)) ky lang xa hoi. hieu van lam lo van hanh dai ((cua tuc) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu khac)) ky lang xa hoi. hieu van lam lo van hanh dai ((cua tuc) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu khac)) ky lang xa hoi. hieu van lam lo van hanh dai ((cua tuc) or (cua tu))*.