Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh doanh » hang doanh, chinh doanh, doanh doanh
ban thanh » ban hanh, ban hang
thanh bai » thanh hai, thanh tai, thanh oai
cong ban » cong bang, cong san, cong tan

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

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