Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hoc sach » hoc sinh, hoc cac, hoc anh
thuc ban » thuoc ban, thuc dan, thu ban
hau thuc » huu thuc, ha thuc, mau thuc
hieu van » hieu va, thien van, lieu va
doc sach » toc sach, nuoc sach, dac sac
danh xa » danh ca, dinh xa, canh xa
van hau » van ha, van hai, van dau
ky danh » ky anh, ky dang
tai cua » thai cua, tai cuc, dai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (doc sach)) ky danh xa hoi. hieu van hau thuc ban thanh ((tai cua) or (tri cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (doc sach)) ky danh xa hoi. hieu van hau thuc ban thanh ((tai cua) OR (tri cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (doc sach)) ky danh xa hoi. hieu van hau thuc ban thanh ((tai cua) or (tri cua)) te*.