Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
chiet tach » chieu sach
canh manh » lanh manh, canh tranh, cach mang
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
manh cua » doanh cua, ban cua
dan phan » doan phan, dan chan, van phan
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: ho chiet tach - canh manh cua ((nhung cong) or (dung cong)) dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh manh cua ((nhung cong) OR (dung cong)) dan phan dau.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh manh cua ((nhung cong) or (dung cong)) dan phan dau*.