Perhaps you should try some spelling variations:
nhung chong » nhung phong, nhung phuong, phong chong
nhung cong » dung cong, thong cong, hang cong
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
doc hieu » toc thieu, hoc thieu, hoc hien
van tan » van tuan, van ban, van tai
tan cau » toan cau, van cau, tan ca

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