Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
quang toan » quang tuan, quang tran, quang doan
tranh cua » doanh cua, manh cua
cua nhung » va nhung
vang toan » van toan, dang toan, vang trang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (chiet tach)) - hanh tranh cua nhung cong ((vang toan) OR (quang toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chiet tach)) - hanh tranh cua nhung cong ((vang toan) OR (quang toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chiet tach)) - hanh tranh cua nhung cong ((vang toan) OR (quang toan)) ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chiet tach)) - hanh tranh cua nhung cong ((vang toan) OR (quang toan)) ban*.