Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
thong cong » trong cong, tong cong, thong thong
hien anh » hien hanh, thien anh, dien anh
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
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 anh - ((hanh trinh) or (canh tranh)) va thong cong dan ((than cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - ((hanh trinh) OR (canh tranh)) va thong cong dan ((than cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - ((hanh trinh) or (canh tranh)) va thong cong dan ((than cau) or (toan cao))*.