Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
chinh cau » chinh chau, chinh ca, chinh tai
chinh can » chinh ca, chinh ban, chinh ngan
ho chieu » theo chieu, doi chieu, mot chieu
cong dan » cong san, cong tan, huong dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - thanh trung cua thong cong dan ((chinh cau) OR (chinh can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh trung cua thong cong dan ((chinh cau) OR (chinh can)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - thanh trung cua thong cong dan ((chinh cau) OR (chinh can))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh trung cua thong cong dan ((chinh cau) OR (chinh can))*.