Perhaps you should try some spelling variations:
chiet tach » chieu sach
cong thanh » dong thanh, cong trinh, truong thanh
doi chiet » doi chieu, doi chi, doi viet
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong ty
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chiet tach - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chiet tach - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chiet tach - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((phan cau) or (phan cac))".
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - canh tranh cua nhung ((cong tan) OR (cong thanh)) ((phan cau) or (phan cac))*.