Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong thai » hong thai, cong thanh, cong tac
cong hai » cong ha, hoang hai, cong tac
tap cau » tap cac, tao cau, ta cau

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

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