Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
quang cua » quan cua, quang tuan, quang huy
cua nhung » va nhung
chi sach » chinh sach, chieu sach, co sach
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - nhanh quang cua nhung cong dan ((than cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - nhanh quang cua nhung cong dan ((than cau) OR (toan ban))*.