Perhaps you should try some spelling variations:
tien thanh » tien thinh, den thanh
tran thanh » ban thanh, van thanh, quan thanh
thong than » thong thanh, thong phan, thong nhan
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua thuong, cua khong, cua tong
than toan » thanh toan, than tuan, thuat toan
manh cua » doanh cua, ban cua
toan cau » toan cao, toan ban, toan tap

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: hoc ((((tien thanh) OR (tran thanh))) OR (dieu hanh)) - hanh manh cua thong thong than toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((tien thanh) OR (tran thanh))) or (dieu hanh)) - hanh manh cua thong thong than toan cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((((tien thanh) OR (tran thanh))) or (dieu hanh)) - hanh manh cua thong thong than toan cau*.