Perhaps you should try some spelling variations:
hoan chinh » hanh chinh, hoa hinh
hoc chinh » hoc sinh, hoc kinh
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chinh) OR (hoan chinh)) sach - canh tranh ((cua thong) or (cua tong)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (hoan chinh)) sach - canh tranh ((cua thong) OR (cua tong)) cong dan toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chinh) OR (hoan chinh)) sach - canh tranh ((cua thong) or (cua tong)) cong dan toan ban*".