Perhaps you should try some spelling variations:
chinh thuat » chinh phat, chien thuat, chinh thuc
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
thuat ung » thuat dung, thuat hung, thuat xung
ung cong » dung cong, luong cong, duong cong
cong san » cong tac
toan cau » toan ban, toan tap
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh chinh thuat ung cong san ((((toan cau) OR (toan tai))) OR (toan cao))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh chinh thuat ung cong san ((((toan cau) or (toan tai))) or (toan cao))*.