Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh trinh » canh tranh, hanh chinh
cong quang » luong quang, thong quang, duong quang
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
chi sach » chinh sach, chieu sach, co sach
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 - hanh trinh cua thong cong quang ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - hanh trinh cua thong cong quang ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: doi chi sach - hanh trinh cua thong cong quang ((toan ban) or (van ban))*.