Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
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
hieu va » lieu va, hieu qua
lam luc » lao luc, lam duoc
luc van » luoc van, luu van, duc van
ma hoi » mai hoi, ma hoa, me hoi
va lam » van lam, va lap

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 va lam luc van 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 va lam luc van hanh kem phat trien.
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ((ma hoi) or (xa hoi)). hieu va lam luc van hanh kem phat trien*.