Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hoc sach » hoc sinh, hoc cac, hoc anh
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
y hang » ly hang, ty hang, yu hang
va hoi » xa hoi, va hoc, va hoa
vi cua » vai cua, di cua
cua te » cua tu

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 y hang va hoi. ((hieu ve) or (hieu va)) cac xuc ((va hanh) or (ban thanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y hang va hoi. ((hieu ve) OR (hieu va)) cac xuc ((va hanh) OR (ban thanh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: hoc sach y hang va hoi. ((hieu ve) or (hieu va)) cac xuc ((va hanh) or (ban thanh)) vi cua te*.