Perhaps you should try some spelling variations:
trong chuan » thong chuan, trong chan, trong thuan
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trong » hanh trang, anh trong, hinh trong
chuan dong » chua dong, chuan long, chuyen dong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

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 - hanh trong chuan dong ((cong dan) OR (cong san)) thanh san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh trong chuan dong ((cong dan) OR (cong san)) thanh san".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh trong chuan dong ((cong dan) OR (cong san)) thanh san*.