Perhaps you should try some spelling variations:
duong truong » duong trong, tang truong, duong cong
truong trung » tieng trung
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu xanh » chieu sach, chieu sang, chieu tinh
tao khoang » tao zhang
khoang cam » khoan cam, khoang cach, hoang cao
doi chieu » doc hieu, doi chi, ho chieu
cong tao » cong tac, cong tan, cong bao

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 tuong ((duong truong) or (truong trung)) cong tao khoang cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh tuong ((duong truong) OR (truong trung)) cong tao khoang cam.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tuong ((duong truong) or (truong trung)) cong tao khoang cam*.