Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cau treo » cau theo, cau tren, cau triet
thanh va » thanh van, hanh va, thanh ha
tham dua » tham du, pham duc, pham duy
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
dua ban » dia ban, cua ban, qua ban
ky tang » ky dang, kho tang, ky trong
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
ha hoi » hoa hoi, ha noi, xa hoi

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 tang) or (ky nang)) ha hoi. hieu va tham dua ban thanh va ((cua tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky tang) OR (ky nang)) ha hoi. hieu va tham dua ban thanh va ((cua tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: te sach ((ky tang) or (ky nang)) ha hoi. hieu va tham dua ban thanh va ((cua tre) or (cau treo))*.