Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doi chau » doi chieu, gioi chau, hoi chu
cong ban » cong bang, cong san, cong tan
ban khan » ban than, ban nhan, ban chan
khan ap » khan cap, han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chau) or (doi khi)) tinh - hanh tranh cua nhung cong ban khan ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chau) OR (doi khi)) tinh - hanh tranh cua nhung cong ban khan ap.
• Adding a wildcard symbol may retrieve word variants: ((doi chau) or (doi khi)) tinh - hanh tranh cua nhung cong ban khan ap*.