Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
trong quang » truong quang, thong quang, trong quan
chieu sang » chieu sach, chieu xanh, hieu lang
quang dung » quang trung, ung dung, cuong dung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
toan cao » 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: ho chieu sang - thanh trong quang dung cong san ((toan cao) or (((toan ban) OR (van ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh trong quang dung cong san ((toan cao) OR (((toan ban) OR (van ban))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh trong quang dung cong san ((toan cao) or (((toan ban) OR (van ban))))*".