Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
thi hang » thi hanh, thi nang, thi hong
tu sach » thu sach, su sach, te sach
cuu tre » cua tre, cau tren, cau treo
cac cua » cach cua, cac qua, ca cua
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thu hang
ve cac » va cac, vien cac
do hoi » do choi, do hoai, do thoi
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: tu sach ((ty hang) or (thi hang)) do hoi. hieu ve cac cua ban thanh toan ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty hang) OR (thi hang)) do hoi. hieu ve cac cua ban thanh toan ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty hang) or (thi hang)) do hoi. hieu ve cac cua ban thanh toan ((cuu tre) or (cua te))*.