Perhaps you should try some spelling variations:
tong thanh » thong thanh, trong thanh, dong thanh
thanh toan » thanh hoa, thanh san, tinh toan
thang cua » thong cua, hang cua, than cua
trung cap » truong cao, trung tam
chi danh » chi anh, chi dinh, chi hanh
toan tap » toan ban
chi dan » choi dan, chi van, thi dan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi danh) OR (chi dan)) - hanh ((thang cua) OR (trung cap)) han tong thanh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi danh) OR (chi dan)) - hanh ((thang cua) or (trung cap)) han tong thanh toan tap~".
• Adding a wildcard symbol may retrieve word variants: doi ((chi danh) OR (chi dan)) - hanh ((thang cua) or (trung cap)) han tong thanh toan tap*.