Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
chieu sang » chieu sach, chieu xanh, nhieu tang
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » hieu quang, nhieu tang, hieu van
trung cua » truong cua, trung cap, dung cua
dong tan » duong tan, dong tai, dong san
tan khan » tan khang, tan nhan, toan khoan
khan cap » khan ap, than cap, khoan cam

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 sang) OR (hieu lang)) - thanh ((trung cua) or (trung tuan)) thuong dong tan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu lang)) - thanh ((trung cua) OR (trung tuan)) thuong dong tan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (hieu lang)) - thanh ((trung cua) or (trung tuan)) thuong dong tan khan cap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (hieu lang)) - thanh ((trung cua) or (trung tuan)) thuong dong tan khan cap*.