Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
hieu va » lieu va, hieu qua
cam duc » cam xuc, pham duc, nam duoc
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
tu sac » tu sach, tu san, tu bac
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu cac)) ky nang x hoi. hieu va ((cam duc) or (cao duc)) va hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ky nang x hoi. hieu va ((cam duc) OR (cao duc)) va hanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky nang x hoi. hieu va ((cam duc) or (cao duc)) va hanh lai cua te*.