Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
lanh manh » lan anh, van manh, anh anh
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, cong dong
thai cao » tai cao, thoai cac, thuat cao

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 - ((lanh manh) OR (lanh tranh)) cua tong ((cong dan) OR (huong dan)) thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((lanh manh) OR (lanh tranh)) cua tong ((cong dan) or (huong dan)) thai cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((lanh manh) OR (lanh tranh)) cua tong ((cong dan) or (huong dan)) thai cao*.