Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
chua tre » chua tri, cua tre, chua trieu
hoc sach » hoc sinh, hoc cac, hoc anh
thanh va » thanh van, hanh va, thanh ha
dong mau » dong ma, dang mau, dong ha
dong nam » dong ha, dong tai, dong va
va chua » vua chua, ca chua, va chu
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
te sach » toc sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao

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) or (hoc sach)) ky ((dong mau) or (dong nam)) hoi. hieu va cam tuc ban thanh va chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc sach)) ky ((dong mau) OR (dong nam)) hoi. hieu va cam tuc ban thanh va chua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc sach)) ky ((dong mau) or (dong nam)) hoi. hieu va cam tuc ban thanh va chua tre*.