Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong bai » cuong bai, cong hai, cong ba
cung bai » cuong bai, dung bai, nhung bai
doi chi » doi khi
tap cao » tap co, tao cao, tap cac

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) OR (doi chi)) sach - hanh tranh cua thong ((cong bai) or (cung bai)) tap cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sach - hanh tranh cua thong ((cong bai) OR (cung bai)) tap cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sach - hanh tranh cua thong ((cong bai) or (cung bai)) tap cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sach - hanh tranh cua thong ((cong bai) or (cung bai)) tap cao*.