Perhaps you should try some spelling variations:
dang thuong » hang thuong, dong thuong, nang thuong
thanh trung » thanh tung
dung thuong » dung trong, hang thuong, cong thuong
chieu sang » chieu sach, chieu xanh, hieu lang
trung cap » truong cao, trung tam
ho chieu » theo chieu, hoc thieu, doi chieu
than cap » khan cap, thanh lap, thanh cac
phan lap » phan dau

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trung cap ((dang thuong) OR (dung thuong)) dam ((than cap) OR (phan lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh trung cap ((dang thuong) OR (dung thuong)) dam ((than cap) or (phan lap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh trung cap ((dang thuong) OR (dung thuong)) dam ((than cap) or (phan lap))*.