Perhaps you should try some spelling variations:
thuong dung » thong dung, phuong dung, thuong dong
dinh thuong » dinh huong, dinh duong, dinh cuong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
hinh dinh » binh dinh, trinh dinh, hinh anh
trong dan » trong dang, trong san, trong tan
dan phan » doan phan, dan chan, van phan
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: doi ((hieu lang) or (chieu sang)) - hinh dinh thuong dung trong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu sang)) - hinh dinh thuong dung trong dan phan cac.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu sang)) - hinh dinh thuong dung trong dan phan cac*.