Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh
doi chi » doi khi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) sach - canh tranh cua nhung cong ((dan toan) OR (van toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) sach - canh tranh cua nhung cong ((dan toan) OR (van toan)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chi)) sach - canh tranh cua nhung cong ((dan toan) OR (van toan)) ban*".