Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
lang cong » dang cong, hang cong, lang dong
bang cong » dang cong, bang song, hang cong
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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