Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
tang van » dang van, hoang van, trong van
tang ma » mang may
hieu ve » hieu va, hieu van
cam dua » ca dua, cay dua, chay dua
dua ban » dia ban, cua ban, qua ban
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky ((tang ma) or (tang van)) hoi. hieu ve cam dua ban thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((tang ma) OR (tang van)) hoi. hieu ve cam dua ban thanh dai cua tre*.