Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, thi chinh
hanh trang » thanh trung, canh tranh, hanh trinh
khong cang » thong cong, hong bang, khong dung
che chinh » te chinh
cua khong » hua khong, cua phuong, cua thuong
cang dan » cong dan, tang dan, canh dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chinh) OR (che chinh)) sach - ((hanh trang) or (hanh chinh)) cua khong cang dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (che chinh)) sach - ((hanh trang) OR (hanh chinh)) cua khong cang dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (che chinh)) sach - ((hanh trang) or (hanh chinh)) cua khong cang dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (che chinh)) sach - ((hanh trang) or (hanh chinh)) cua khong cang dan toan cao*.