Perhaps you should try some spelling variations:
dung thuong » dung trong, hang thuong, cong thuong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
doan tuan » doanh luan, doan quang, hoang tuan
doan quan » doan quang, dan quan, toan quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh ((trung tuan) or (truong dai)) dung thuong ((doan tuan) OR (doan quan)) thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh ((trung tuan) OR (truong dai)) dung thuong ((doan tuan) OR (doan quan)) thu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((trung tuan) or (truong dai)) dung thuong ((doan tuan) OR (doan quan)) thu".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((trung tuan) or (truong dai)) dung thuong ((doan tuan) OR (doan quan)) thu*.