Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((hanh dung) OR (hanh dong)) cua dong cong van than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((hanh dung) OR (hanh dong)) cua dong cong van than ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((hanh dung) OR (hanh dong)) cua dong cong van than ban*.