Perhaps you should try some spelling variations:
duong trong » dung trong
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh dung » thanh duong, thanh tung, thanh hung
trong dien » truong dien, trong dieu, thong dien
hieu lang » hieu quang, nhieu tang, hieu van
hai duong » dai cuong, hai phong
dien phan » dien thanh, bien phap, hien phap
dung hai » dung tai, dung ha, dung sai
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) or (hieu lang)) - thanh dung hai duong trong dien phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh dung hai duong trong dien phan cac.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - thanh dung hai duong trong dien phan cac*.