Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
nong cong » cong cong, tong cong, nang cong
cua nong » cua cong, cuu nong, cua dong
cong van » cong vang, cong san, song van
khan cap » than cap, khoan cam, phan cac
khan ap » 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: ho ((chieu xanh) or (chinh sach)) - hanh tranh cua nong cong van ((khan cap) OR (khan ap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chinh sach)) - hanh tranh cua nong cong van ((khan cap) OR (khan ap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chinh sach)) - hanh tranh cua nong cong van ((khan cap) OR (khan ap))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chinh sach)) - hanh tranh cua nong cong van ((khan cap) OR (khan ap))*.