Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
chieu xanh » chieu sach, chieu sang, chieu tinh
khang cong » hang cong, thanh cong, dang cong
doi chieu » doc hieu, doi chi, ho chieu
trong nam » thong nam, trong lam, trong cac
nam khang » nam thang, nam khanh, nam thanh
cong san » cong tac
toan ban » van ban

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 trong nam khang cong san ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh trong nam khang cong san ((toan tap) OR (toan ban))*.