Perhaps you should try some spelling variations:
truong quang » truong quan, luong quang, thong quang
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
doi chieu » doc hieu, doi chi, ho chieu
van thanh » ban thanh, van tuan
van phan » van phong, luan phan, 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 - thanh ((truong quang) or (trung tuan)) trong cong ((van phan) OR (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh ((truong quang) OR (trung tuan)) trong cong ((van phan) OR (van thanh)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh ((truong quang) or (trung tuan)) trong cong ((van phan) OR (van thanh)) cau*".