Perhaps you should try some spelling variations:
cong manh » cong danh, duong manh, cong thanh
hoc tien » hoc tieng, hoc hien, hoc vien
tien anh » tieng anh, tien manh, dien anh
chinh vi » chinh va, chinh viet, chinh tri
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
vi dang » vu dang, va dang, vi dong

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 anh - hanh chinh vi dang ((cong manh) or (cong trinh)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien anh - hanh chinh vi dang ((cong manh) OR (cong trinh)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc tien anh - hanh chinh vi dang ((cong manh) or (cong trinh)) ((toan cau) or (toan ban))*.