Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
toc hieu » toc thieu, doc hieu, hoc thieu
cong tan » cong tac, cong san, cong thanh
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: toc hieu manh - ((hanh trinh) or (hanh chinh)) cua nhung cong tan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - ((hanh trinh) OR (hanh chinh)) cua nhung cong tan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - ((hanh trinh) or (hanh chinh)) cua nhung cong tan ((than cau) or (toan cau))*.