Perhaps you should try some spelling variations:
thong tuong » thong thuong, thong thong, thong duong
tien thanh » tien thinh, tran thanh, den thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua khong, cua tong
tuong van » truong van, trong van, duong van
tinh cua » trinh cua, sinh cua, tinh chat
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (tien thanh)) - hanh tinh cua thong tuong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (tien thanh)) - hanh tinh cua thong tuong van toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (tien thanh)) - hanh tinh cua thong tuong van toan cau*.