Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
cau theo » cau thi, cau tao
cau treo » cau tren, cau triet, cau trieu
cac xuc » cam xuc, cac nuoc, chat xuc
xuc ban » duc ban, cuc ban, quoc ban
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
hieu va » lieu va, hieu qua
ca hoi » cua hoi, xa hoi, co hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty hang ((ca hoi) OR (cau hoi)). hieu va cac xuc ban thanh toan ((cau treo) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang ((ca hoi) OR (cau hoi)). hieu va cac xuc ban thanh toan ((cau treo) OR (cau theo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang ((ca hoi) OR (cau hoi)). hieu va cac xuc ban thanh toan ((cau treo) or (cau theo))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang ((ca hoi) OR (cau hoi)). hieu va cac xuc ban thanh toan ((cau treo) or (cau theo))*.