Perhaps you should try some spelling variations:
hanh trinh » canh tranh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
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: ((doi chieu) or (toc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) cua nhung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) cua nhung cong ban than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (toc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) cua nhung cong ban than cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) xanh - ((hanh trinh) OR (hanh chinh)) cua nhung cong ban than cau*.