Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
trung cap » truong cao, trung tam
ho chinh » hoc chinh, cho chinh, hoa chinh
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, chinh cau, nhanh cau
tang ha » lang ha, tang ma, trung ha
can cau » van cau, ban cau, ca cau

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: ho chinh sach - hanh ((tang ha) OR (trung cap)) thong cong dan ((chan cau) OR (can cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - hanh ((tang ha) or (trung cap)) thong cong dan ((chan cau) OR (can cau))~".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - hanh ((tang ha) or (trung cap)) thong cong dan ((chan cau) OR (can cau))*.