Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
toan cua » than cua, tan cua, doanh cua
hoc sach » hoc sinh, hoc cac, hoc anh
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
vu sach » vu bach, su sach, vu khach
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
van hoi » van hoa, van hoc, van hoe
va cam » va cham, va cac, va cao

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) or (hoc sach)) ((ky tang) or (ky dang)) van hoi. hieu va cam duc ban thanh toan cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (hoc sach)) ((ky tang) OR (ky dang)) van hoi. hieu va cam duc ban thanh toan cua vat.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (hoc sach)) ((ky tang) or (ky dang)) van hoi. hieu va cam duc ban thanh toan cua vat*.