Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung dong » nhung don, nhung cong, nhung dung
thanh toan » thanh hoa, tinh toan
tranh va » tranh van, trang va, trinh va

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 tinh) or (chieu sach)) - hanh tranh va nhung dong ((thanh toan) OR (thanh san)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu tinh) OR (chieu sach)) - hanh tranh va nhung dong ((thanh toan) OR (thanh san)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu tinh) or (chieu sach)) - hanh tranh va nhung dong ((thanh toan) OR (thanh san)) tap".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu tinh) or (chieu sach)) - hanh tranh va nhung dong ((thanh toan) OR (thanh san)) tap*.