Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
tuong khoa » luong khoa, duong khoa, dung khoa
doi chieu » doc hieu, doi chi, mot chieu
khoa dung » hoc dung, khoa cong
dung cong » dung trong
tan khang » van khang, tao khang, tinh khang
khang dau » hang dau, phan dau, xang dau
cong tan » cong tac, cong san, cong thanh

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 tuong khoa dung cong tan khang dau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh tuong khoa dung cong tan khang dau*.