Perhaps you should try some spelling variations:
hoan chinh » hanh chinh, hoa hinh
thanh tran » thanh trang, thanh toan, thanh tra
cong quang » luong quang, thong quang, duong quang
hoc chinh » hoc sinh, hoc kinh
dung cong » dung trong
tran tin » tran tien, trang tin, toan tin
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 - thanh tran tin dung cong quang ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (hoan chinh)) sach - thanh tran tin dung cong quang ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chinh) or (hoan chinh)) sach - thanh tran tin dung cong quang ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((hoc chinh) or (hoan chinh)) sach - thanh tran tin dung cong quang ((toan tap) OR (toan ban))*.