Perhaps you should try some spelling variations:
cua phuong » cuu phuong, cuc phuong, luan phuong
doi chieu » doi chi, ho chieu, mot chieu
cua khong » hua khong, cua thuong, cua cong
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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