Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thuong chung » truong chung, thung chung, thuong hung
chieu xanh » chieu sach, chieu sang, chieu tinh
chung dung » nhung dung, cung dung, phung dung
hoc chieu » hoc thieu, ho chieu, hoc hien
cong toan » cong hoan, cong tuan, cong doan
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: hoc chieu xanh - thanh thuong chung dung ((cong tan) or (cong toan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - thanh thuong chung dung ((cong tan) OR (cong toan)) phan tu*.