Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
cac thu » cach thuc, cac thoi

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