Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
kem phat » te phat, de phat, tam phat
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
van lam » van nam
lam tuc » lam thuoc, lam truoc, luat tuc
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, ma hoa, me hoi
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ly nang ((ma hoi) or (xa hoi)). hieu van lam tuc va hanh kem phat trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ((ma hoi) OR (xa hoi)). hieu van lam tuc va hanh kem phat trien.
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((ma hoi) or (xa hoi)). hieu van lam tuc va hanh kem phat trien*.