Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh dung » thanh dung, anh dung, hanh dong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
hang tai » hang va

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 dung cua thong ((cong dan) or (cong tan)) ((hang tai) OR (dung tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh dung cua thong ((cong dan) OR (cong tan)) ((hang tai) OR (dung tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh dung cua thong ((cong dan) or (cong tan)) ((hang tai) OR (dung tai))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh dung cua thong ((cong dan) or (cong tan)) ((hang tai) OR (dung tai))*.