Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
sach kem » hanh kem
cham tuc » nham thuc, pham thuc, tham thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tuc ban » thuc ban, truc ban, tu ban
su tien » su kien, su hien, tu tieng
van su » dan su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach kem) or (sach y)) nang xa hoi. hieu ve cham tuc ban thanh van su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach kem) OR (sach y)) nang xa hoi. hieu ve cham tuc ban thanh van su tien.
• Adding a wildcard symbol may retrieve word variants: su ((sach kem) or (sach y)) nang xa hoi. hieu ve cham tuc ban thanh van su tien*.