Perhaps you should try some spelling variations:
ban thanh » ban hang
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
ban hanh » ban hang
vu sach » vu bach, su sach, vu khach
tang xa » trang xa, tang ma, lang xa
cac tuc » cac toc, cac tu, cac tac
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach kho tang xa hoi. lieu va cac tuc ((ban thanh) or (ban hanh)) vi ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach kho tang xa hoi. lieu va cac tuc ((ban thanh) OR (ban hanh)) vi ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach kho tang xa hoi. lieu va cac tuc ((ban thanh) or (ban hanh)) vi ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: vu sach kho tang xa hoi. lieu va cac tuc ((ban thanh) or (ban hanh)) vi ((cua tre) OR (cuu tre))*.