Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thien anh » thien danh, tien anh, thien thanh
ve thong » he thong, va thong, ve phong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (thien anh)) - ((hanh trinh) or (canh tranh)) ve thong cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (thien anh)) - ((hanh trinh) OR (canh tranh)) ve thong cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (thien anh)) - ((hanh trinh) or (canh tranh)) ve thong cong dan than cau*.