Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
hau treo » cau treo, cau theo, dau tren
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly hang » ly quang
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
hai hau » hai chau, dai hau, hai hai
hang x » nang x, hoang xa, chang xu
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: tu sach ly hang x hoi. hieu va cac xuc ((van hanh) or (ban hanh)) hai hau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly hang x hoi. hieu va cac xuc ((van hanh) OR (ban hanh)) hai hau treo.
• Adding a wildcard symbol may retrieve word variants: tu sach ly hang x hoi. hieu va cac xuc ((van hanh) or (ban hanh)) hai hau treo*.