Perhaps you should try some spelling variations:
phuong duong » phuong dung, chuong duong, phuong dong
theo chinh » thien chinh, che chinh, thi chinh
hanh trang » thanh trung, hanh trinh, minh trang
duong manh » duong van
va phuong » va thuong, cac phuong
manh toan » thanh toan, anh tuan, tinh toan
te chinh » tai chinh
toan cau » 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 (te chinh)) sach - ((hanh trang) or (canh tranh)) va phuong duong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chinh) OR (te chinh)) sach - ((hanh trang) OR (canh tranh)) va phuong duong manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chinh) OR (te chinh)) sach - ((hanh trang) or (canh tranh)) va phuong duong manh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chinh) OR (te chinh)) sach - ((hanh trang) or (canh tranh)) va phuong duong manh toan cau*.