Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
chinh cau » chinh chau, chinh ca, chinh can
minh chau » tinh chat
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
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: ((ho chieu) or (doi chi)) sach - canh tranh van nhung cong san ((chinh cau) or (minh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) sach - canh tranh van nhung cong san ((chinh cau) OR (minh chau)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) sach - canh tranh van nhung cong san ((chinh cau) or (minh chau))*.