Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
tong thong » thong thong, dong thong, cong thong
thong kenh » thong ke, thong minh, phong benh
doi chieu » doc hieu, doi chi, mot chieu
kenh phan » benh nhan, benh phau, ke phan
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong

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 tung cua tong thong kenh phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tung cua tong thong kenh phan tu*.