Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh dung » thanh duong, thanh tung, thanh hung
hieu lang » hieu quang, nhieu tang, hieu van
phan cong » thanh cong
cong thai » cong hai, hong thai, cong thanh
thai danh » thai thanh, thai binh, thai den
dung hoc » dong hoc, dung thuoc, trung hoc
hoc phan » hoc dan, hoc pho
danh ca » dan ca, doanh cua, danh cho

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) OR (hieu lang)) - thanh dung hoc phan cong thai danh ca~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu sang) OR (hieu lang)) - thanh dung hoc phan cong thai danh ca".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu sang) OR (hieu lang)) - thanh dung hoc phan cong thai danh ca*.