Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 (doc hieu)) xanh - canh tranh cua ((nhung cong) or (dung cong)) dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - canh tranh cua ((nhung cong) OR (dung cong)) dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) xanh - canh tranh cua ((nhung cong) or (dung cong)) dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) xanh - canh tranh cua ((nhung cong) or (dung cong)) dan phan cau*.