Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh trinh » canh tranh, hanh trinh, canh tinh
trinh qua » trinh quan, trinh cua, trinh quang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 - canh trinh qua dung cong dan ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh trinh qua dung cong dan ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh trinh qua dung cong dan ((phan cau) or (phan cac))*.