Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
cam tuc » cam xuc, cam tu, nam thuc
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
cua tre » cuu tre, cua triet, dua tren
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
te sac » te sach, te cac, te san
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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 ky tang ma hoi. ((hieu va) OR (lieu va)) cam tuc va hanh thai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky tang ma hoi. ((hieu va) OR (lieu va)) cam tuc va hanh thai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky tang ma hoi. ((hieu va) OR (lieu va)) cam tuc va hanh thai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sac ky tang ma hoi. ((hieu va) OR (lieu va)) cam tuc va hanh thai ((cua tre) or (cua te))*.