Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cong vang » cong lang, cong quang, cong ngang
cua tong » cua cong, cua dong, cua nong
cong van » cong san, song van, cong tan
tuan cu » tuan tu, quan cua, tuan thu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - hanh tranh cua tong ((cong van) OR (cong vang)) tuan cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu sach)) - hanh tranh cua tong ((cong van) or (cong vang)) tuan cu~".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu sach)) - hanh tranh cua tong ((cong van) or (cong vang)) tuan cu*.