Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
dang cong » dung cong
cua dang » cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ho ((chieu xanh) OR (chieu sang)) - ((hanh trang) or (hanh trinh)) cua dang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - ((hanh trang) OR (hanh trinh)) cua dang cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - ((hanh trang) or (hanh trinh)) cua dang cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - ((hanh trang) or (hanh trinh)) cua dang cong tac toan cao*.