Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, thi chinh
nhung cong » dung cong, thong cong, hang cong
che chinh » te chinh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
luan hoan » luan van
xuat phan » thuat phan, xuat nhap, luan phan

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 - canh tranh cua nhung cong ((luan hoan) or (xuat phan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (che chinh)) sach - canh tranh cua nhung cong ((luan hoan) OR (xuat phan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (che chinh)) sach - canh tranh cua nhung cong ((luan hoan) or (xuat phan)) tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (che chinh)) sach - canh tranh cua nhung cong ((luan hoan) or (xuat phan)) tap*.