Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
phuong doan » phuong loan, phuong hoang, huong dan
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 quang » tran quang, van quang, dang quang
trung cap » truong cao, trung tam
quang thu » quang tru, quang phu, quang thi

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 (trung cap)) dung phuong doan quang thu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh ((trung tuan) OR (trung cap)) dung phuong doan quang thu.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((trung tuan) or (trung cap)) dung phuong doan quang thu*.