Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
khoa chau » khoai chau, khoa phau, khoa cham
tranh cua » doanh cua, manh cua
cua nhung » va nhung
chinh cau » chinh chau, chinh can, chinh tai
cong san » cong tac
chinh ca » chinh ta, chinh va, chinh tai
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((khoa chau) or (hoi chu)) tinh - hanh tranh cua nhung cong san ((chinh cau) or (chinh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((khoa chau) OR (hoi chu)) tinh - hanh tranh cua nhung cong san ((chinh cau) OR (chinh ca)).
• Adding a wildcard symbol may retrieve word variants: ((khoa chau) or (hoi chu)) tinh - hanh tranh cua nhung cong san ((chinh cau) or (chinh ca))*.