Perhaps you should try some spelling variations:
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
dien anh » tieng anh
dien dan » hien dai, vien dai, gian dan
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
phan cau » phan dau, phan cac, phan tu
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 ((dien anh) or (dien dan)) - thanh tung cua thong cong san ((phan cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien anh) OR (dien dan)) - thanh tung cua thong cong san ((phan cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((dien anh) or (dien dan)) - thanh tung cua thong cong san ((phan cau) or (toan cau))*.