Perhaps you should try some spelling variations:
cac truc » cau truc, cac tru, cac trung
hanh tai » thanh tai, hang tai, han tai
va triet » va thiet, va trien, ve triet
so sinh » so sanh, so tinh, cho sinh
ly nang » ky nang, ly hang, ly vang
qua cac » cua cac
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
y nang » ky nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
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. hieu qua cac truc va hanh tai va triet~.
• Adding a wildcard symbol may retrieve word variants: so sinh ((y nang) or (ly nang)) ma hoi. hieu qua cac truc va hanh tai va triet*.