Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh trinh » canh tranh, hanh trinh, canh tinh
luat dung » suat dung, luat chung, luat quang
trong dan » trong dang, trong san, trong tan
ho chieu » theo chieu, hoc thieu, doi chieu
khan cap » khan ap, than cap, khoan cam

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 luat dung trong dan ((phan tu) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh trinh luat dung trong dan ((phan tu) OR (khan cap))*.