Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
tu tieng » luc tieng, tu tuong, tu trong
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
hieu ve » hieu va, hieu van
su tien » su kien, su hien, dau tien
te sac » te sach, te cac, te san
tu ban » thu ban, te ban
ve dam » ven dam, ke dam, va dam
dam tu » nam tu, cam tu, tam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ((ky dang) or (ky tang)) xa hoi. hieu ve dam tu ban thanh toan ((su tien) OR (tu tieng))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((ky dang) OR (ky tang)) xa hoi. hieu ve dam tu ban thanh toan ((su tien) OR (tu tieng)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((ky dang) or (ky tang)) xa hoi. hieu ve dam tu ban thanh toan ((su tien) OR (tu tieng))".
• Adding a wildcard symbol may retrieve word variants: te sac ((ky dang) or (ky tang)) xa hoi. hieu ve dam tu ban thanh toan ((su tien) OR (tu tieng))*.