Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
hanh trinh » canh tranh, hanh chinh
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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 sang - ((thanh tung) or (hanh trinh)) cua cong cong ((dan than) OR (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh tung) OR (hanh trinh)) cua cong cong ((dan than) OR (ban than)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((thanh tung) or (hanh trinh)) cua cong cong ((dan than) OR (ban than)) ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh tung) or (hanh trinh)) cua cong cong ((dan than) OR (ban than)) ban*.