Perhaps you should try some spelling variations:
thien chinh » tien thinh, thien chien, thi chinh
theo chinh » te chinh, che chinh, thi chinh
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua thuong, cua khong, cua tong
linh toan » tinh toan, hinh toan, minh toan
cua dong » chua dong, cua cong, cua dang
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: ((theo chinh) OR (thien chinh)) sach - hanh manh ((cua thong) or (cua dong)) cuong linh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (thien chinh)) sach - hanh manh ((cua thong) OR (cua dong)) cuong linh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (thien chinh)) sach - hanh manh ((cua thong) or (cua dong)) cuong linh toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (thien chinh)) sach - hanh manh ((cua thong) or (cua dong)) cuong linh toan ban*.