Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
nhan dang » nhan dan, phan dang, tran dang
cua thong » cua thuong, cua khong, cua tong
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chinh sach - ((nhan dang) or (hanh trang)) cua thong cong dan ((phan cau) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - ((nhan dang) OR (hanh trang)) cua thong cong dan ((phan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chinh sach - ((nhan dang) or (hanh trang)) cua thong cong dan ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - ((nhan dang) or (hanh trang)) cua thong cong dan ((phan cau) OR (phan dau))*.