Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
chiet tach » chieu sach
canh manh » lanh manh, canh tranh, cach mang
hang cong » dang cong, hang nong, bang cong
doan phan » doanh phan, toan phan, dan phan
ho chiet » ho chieu, ho thiet, hoc thiet
manh cua » doanh cua, ban cua
van phan » van phong, van thanh, luan phan

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 (hang cong)) ((doan phan) or (van phan)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - canh manh cua ((nhung cong) OR (hang cong)) ((doan phan) OR (van phan)) cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh manh cua ((nhung cong) OR (hang cong)) ((doan phan) or (van phan)) cac*".