Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
doi chieu » doc hieu, doi chi, mot chieu
trang qua » trong qua, trong quan, trang tuan
qua nhung » quan nhung, cua nhung, qua chung
ho chieu » theo chieu, hoc thieu, mot chieu
cong van » cong vang, song van, cong tan
cong san » cong tac
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) sach - hanh trang qua nhung ((cong van) OR (cong san)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - hanh trang qua nhung ((cong van) OR (cong san)) tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - hanh trang qua nhung ((cong van) OR (cong san)) tuan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - hanh trang qua nhung ((cong van) OR (cong san)) tuan ban*.