Perhaps you should try some spelling variations:
canh tran » canh tranh, hanh trang, banh trang
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van hang » van khang, van hoang, van thang
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van 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 (hoc hien)) sach - canh tran van hang cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) sach - canh tran van hang cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) sach - canh tran van hang cong san ((toan cau) or (toan ban))*.