Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
thanh tung » thanh cong
tong cong » trong cong, cong cong, dung cong
hoc tien » hoc tieng, hoc hien, hoc vien
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
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 tien thanh - thanh tung cua tong cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien thanh - thanh tung cua tong cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc tien thanh - thanh tung cua tong cong dan ((than cau) or (toan cau))*.