Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
canh trinh » canh tranh, hanh trinh, canh tinh
trinh han » trinh quan
cong dang » cong dong, cong dung, cong danh
han hung » phan hung, van hung, han ung
cong dan » cong san, cong tan, huong dan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sang - canh trinh han hung ((cong dan) or (cong dang)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - canh trinh han hung ((cong dan) OR (cong dang)) phan lap*.