Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, mot chieu
cua dung » cua dang, cua dong, qua dung
cong ban » cong bang, cong san, cong tan
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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 (ho chieu)) sach - canh tranh cua dung cong ban ((than ban) OR (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - canh tranh cua dung cong ban ((than ban) OR (than man)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (ho chieu)) sach - canh tranh cua dung cong ban ((than ban) OR (than man))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - canh tranh cua dung cong ban ((than ban) OR (than man))*.