Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
san chang » ban hang, dan chan, van khang
tranh va » tranh van, trang va, trinh va
va trong » va truong, va thong, va tuong
san hang » ban hang, van hang, san sang

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 (chieu sang)) - canh tranh va trong cong ((san hang) or (san chang)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - canh tranh va trong cong ((san hang) OR (san chang)) dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) OR (chieu sang)) - canh tranh va trong cong ((san hang) or (san chang)) dau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) OR (chieu sang)) - canh tranh va trong cong ((san hang) or (san chang)) dau*.