Perhaps you should try some spelling variations:
cong khanh » cong thanh, cong khan, cong danh
hanh tranh » canh tranh, hanh trinh, hanh trang
mot chieu » doi chieu, ho chieu
tranh cua » doanh cua, manh cua
cong nhan » cong nhat, cong thanh, cong san
cua dang » cua cong, cua ban
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: ((mot chieu) or (doi chi)) xanh - hanh tranh cua dang ((cong khanh) OR (cong nhan)) doanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chi)) xanh - hanh tranh cua dang ((cong khanh) OR (cong nhan)) doanh tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doi chi)) xanh - hanh tranh cua dang ((cong khanh) OR (cong nhan)) doanh tai".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chi)) xanh - hanh tranh cua dang ((cong khanh) OR (cong nhan)) doanh tai*.