Perhaps you should try some spelling variations:
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
te sac » te sach, te san
va cam » va cham, va cac, va cao
te cac » tu cac, ve cac, te cao
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: ((te sac) or (te cac)) ky nang x hoi. hieu va cam tuc ((va hanh) or (va dinh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te cac)) ky nang x hoi. hieu va cam tuc ((va hanh) OR (va dinh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te cac)) ky nang x hoi. hieu va cam tuc ((va hanh) or (va dinh)) vi cua te*.