Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hien xanh » hien hanh, hien nhanh, hien khanh
hanh hang » thanh hang, hang hang, hanh han
lang song » nang song, bang song, lang dong
lang son » nang song, bang song, anh son
van hang » van khang, van hoang, van thang
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) OR (chieu xanh)) - hanh hang va ((lang song) or (lang son)) van hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh hang va ((lang song) OR (lang son)) van hang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - hanh hang va ((lang song) or (lang son)) van hang cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - hanh hang va ((lang song) or (lang son)) van hang cau*.