Perhaps you should try some spelling variations:
thanh luong » thanh huong, thanh long, thanh cuong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
tranh cua » doanh cua, manh cua
cua thanh » gia thanh, va thanh, ha thanh
van tuan » van quan, van ban

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 sang) OR (chieu xanh)) - canh tranh cua thanh luong ((van tuan) or (anh tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu xanh)) - canh tranh cua thanh luong ((van tuan) OR (anh tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (chieu xanh)) - canh tranh cua thanh luong ((van tuan) or (anh tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (chieu xanh)) - canh tranh cua thanh luong ((van tuan) or (anh tuan)) cao*.