Perhaps you should try some spelling variations:
hang doanh » hanh doanh, nhung doanh, van doanh
chieu xanh » chieu sach, chieu sang, chieu tinh
khong cong » thong cong, khong cang, chong cong
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
san han » san phan, san van, san ha
van han » van hanh, van phan, van nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chieu xanh)) - hang doanh cua khong cong ((san han) OR (van han)) tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu xanh)) - hang doanh cua khong cong ((san han) OR (van han)) tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (chieu xanh)) - hang doanh cua khong cong ((san han) OR (van han)) tai".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu xanh)) - hang doanh cua khong cong ((san han) OR (van han)) tai*.