Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
hanh cay » nhanh cay, hanh cac, hanh cat
cuu tre » cua tre, cau tren
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, te sach, tu cach
qua cac » cua cac
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
cac tuc » cac toc, cac tu, cac tac
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) y nang xa hoi. hieu qua cac tuc va hanh cay ((cuu tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) y nang xa hoi. hieu qua cac tuc va hanh cay ((cuu tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) y nang xa hoi. hieu qua cac tuc va hanh cay ((cuu tre) or (cau treo))*.