Perhaps you should try some spelling variations:
thanh thanh » nhanh thanh, thanh toan, thanh phan
chieu sang » chieu sach, chieu xanh, hieu lang
thuong dan » huong dan, thuong han, thuong dam
doi chieu » doc hieu, doi chi, ho chieu
san dung » dan dung, tan dung, lan dung
van dung » van dong, xay dung, tin dung
than cau » toan cau, phan cau, than cap

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 - thanh thanh ((san dung) OR (van dung)) ((thuong dan) or (truong dai)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - thanh thanh ((san dung) OR (van dung)) ((thuong dan) OR (truong dai)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - thanh thanh ((san dung) OR (van dung)) ((thuong dan) or (truong dai)) than cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh thanh ((san dung) OR (van dung)) ((thuong dan) or (truong dai)) than cau*.