Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
dang thanh » dong thanh, dang hanh, hoang thanh
doi chieu » doc hieu, doi chi, ho chieu
quan dong » quang dong, quan long, quan hoang
qua dung » quang dung, su dung, qua song
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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 - dang thanh ((quan dong) or (qua dung)) cong tan ((phan tu) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - dang thanh ((quan dong) OR (qua dung)) cong tan ((phan tu) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - dang thanh ((quan dong) or (qua dung)) cong tan ((phan tu) or (toan ban))*.