Perhaps you should try some spelling variations:
thuong luong » theo luong, cong luong, thong thuong
thanh trung » thanh tung
luong quang » luong quan, dung quang
chieu sang » chieu sach, chieu xanh, nhieu tang
cap thuong » chap thuong, ca thuong, cao thuong
hieu lang » hieu quang, nhieu tang, hieu van
trung cap » truong cao, trung tam
toan cao » toan tap
toan ban » 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: ho ((chieu sang) or (hieu lang)) - thanh trung cap thuong luong quang ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh trung cap thuong luong quang ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - thanh trung cap thuong luong quang ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - thanh trung cap thuong luong quang ((toan cao) OR (toan ban))*.