Perhaps you should try some spelling variations:
ngang chuan » zhang chuan
chieu sang » chieu sach, chieu xanh, hieu lang
doc chieu » doc hieu, doi chieu, toc thieu
hanh hinh » hanh chinh, hanh tinh, hanh dinh
hinh luat » hanh luat, trinh luat, chinh luan
dung cong » dung trong
chuan he » quan he

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu sang - hanh hinh luat ((dang cong) or (dung cong)) ngang chuan he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sang - hanh hinh luat ((dang cong) OR (dung cong)) ngang chuan he*.