Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
van hanh » van thanh, ban hanh, van anh
cua tre » cua te, cuu tre, cua triet
tuc van » thuc van, truc van, tuc va
cac tuc » cac toc, cac tu, cac tac
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
tu ban » thu ban, te ban
tu san » thu san, tu can, vu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) or (tu ban)) ky nang ma hoi. hieu va cac tuc van hanh vi ((cua tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky nang ma hoi. hieu va cac tuc van hanh vi ((cua tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu ban)) ky nang ma hoi. hieu va cac tuc van hanh vi ((cua tre) or (cau treo))*.