Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, hoc thieu, mot chieu
phan dau » phan tu, hang dau

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 (ho chieu)) sach - canh tranh cua ((nhung cong) or (thong cong)) doan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - canh tranh cua ((nhung cong) OR (thong cong)) doan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - canh tranh cua ((nhung cong) or (thong cong)) doan phan dau*.