Perhaps you should try some spelling variations:
hoan chinh » hanh chinh, hoa hinh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
cong tam » cong tac, cong tan, cong nam
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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: ((hoan chinh) OR (mo hinh)) sach - thanh tung cua thong cong tam ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoan chinh) or (mo hinh)) sach - thanh tung cua thong cong tam ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ((hoan chinh) or (mo hinh)) sach - thanh tung cua thong cong tam ((toan cau) OR (toan ban))*.