Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
khong cong » thong cong, khong cang, khong con
chong cong » cong cong, thong cong, cuong cong
trang cua » tranh cua, tang cua, trung cua
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
chuc » thuc, chu, chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chuc nang)) - hanh trang cua ((khong cong) OR (chong cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chuc nang)) - hanh trang cua ((khong cong) OR (chong cong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chuc nang)) - hanh trang cua ((khong cong) OR (chong cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chuc nang)) - hanh trang cua ((khong cong) OR (chong cong)) dan toan cao*.