Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh tai » thanh tai, hang tai, han tai
cam truc » cau truc, nam truc, lam truoc
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
qua cam » qua cham, qua cac, qua ca
so sinh » so sanh, so tinh, cho sinh
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, ma hoa, me hoi
y nang » ky nang, v nang, may nang
tai va » thai va, mai va, tri va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sinh ((y nang) OR (ly nang)) ((ma hoi) OR (xa hoi)). hieu qua cam truc va hanh tai va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sinh ((y nang) or (ly nang)) ((ma hoi) OR (xa hoi)). hieu qua cam truc va hanh tai va triet~".
• Adding a wildcard symbol may retrieve word variants: so sinh ((y nang) or (ly nang)) ((ma hoi) OR (xa hoi)). hieu qua cam truc va hanh tai va triet*.