Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
cham thu » cam thu, nham thu, pham thu
cua tre » cua te, cuu tre, dua tren
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
thu va » thuc va, thue va, tu va
tu bai » tu ban, tu bat, te bai
tu cai » tu cac, tu can, tu cay

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: ((tu cai) OR (tu bai)) ky nang ma hoi. hieu ve cham thu va thanh vi ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cai) OR (tu bai)) ky nang ma hoi. hieu ve cham thu va thanh vi ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: ((tu cai) OR (tu bai)) ky nang ma hoi. hieu ve cham thu va thanh vi ((cua tre) or (cua triet))*.