Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, ho chieu, mot chieu
trinh cua » tinh cua, trinh luat, trinh quan
cua dang » cua cong, cua ban
cong van » cong vang, song van, cong tan
cong san » cong tac
chat cau » chat cam, chat cao, chat va
doi chi » doi khi

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