Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
cau treo » cau theo, cau tren, cau triet
hanh tai » thanh tai, hang tai, hinh tai
hieu va » lieu va, hieu qua
va bach » va cach, vu bach, va bac
tuoc va » thuoc va, nuoc va, duoc va
sach ky » sac ky, sach y, sach ty
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang x hoi. hieu va bach tuoc va ((hanh tai) or (han tai)) ((cua tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu va bach tuoc va ((hanh tai) OR (han tai)) ((cua tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu va bach tuoc va ((hanh tai) or (han tai)) ((cua tre) or (cau treo))*.