Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong duong » cuong duong, cong dong, con duong
duong gian » duong giao, duong giai, duong giam
doi chieu » doc hieu, doi chi, mot chieu
gian nghe » van nghe
cong cua » cong cu, dong cua, huong cua
nghe cao » nghe co, nghe nano, nghe chan

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 xanh - thanh cong cua cong duong gian nghe cao~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh cong cua cong duong gian nghe cao*.