Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, truong thanh
dung luong » dung thuong, dung phuong, dung truong
doi chieu » doc hieu, doi chi, ho chieu
tran tuan » tran xuan, tran quang, tran thanh
juan cao » quang cao, quan cau, juan a
toan cao » toan ban, toan tap

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 ((trung tuan) or (tran tuan)) dung luong quang ((juan cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh ((trung tuan) OR (tran tuan)) dung luong quang ((juan cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh ((trung tuan) or (tran tuan)) dung luong quang ((juan cao) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh ((trung tuan) or (tran tuan)) dung luong quang ((juan cao) OR (toan cao))*.