Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trinh qua » trinh quan, trinh quang, trinh luat
trinh cua » tinh cua, trinh luat, trinh quan
cong san » cong tac
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 - hanh ((trinh qua) or (trinh cua)) nhung ((cong san) or (luong quang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh ((trinh qua) OR (trinh cua)) nhung ((cong san) OR (luong quang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh ((trinh qua) or (trinh cua)) nhung ((cong san) or (luong quang)) toan ban*.