Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan duong » tuan duong, quan dong, qua duong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan ban » van ban
chu han » chu van

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 (chu han)) - hanh trinh quan duong ((cong tan) OR (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chu han)) - hanh trinh quan duong ((cong tan) OR (cong san)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chu han)) - hanh trinh quan duong ((cong tan) OR (cong san)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chu han)) - hanh trinh quan duong ((cong tan) OR (cong san)) toan ban*.