Perhaps you should try some spelling variations:
nhung phuong » dung phuong, truong phuong, bang phuong
hanh trang » thanh trung, hanh trinh, minh trang
nhu phuong » thu phuong, thi phuong, thu huong
tieu sach » chieu sach, dien sach, te sach
dan toan » van toan, dan than, manh toan
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 tieu sach - ((hanh trang) or (canh tranh)) cua ((nhung phuong) OR (nhu phuong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((hanh trang) OR (canh tranh)) cua ((nhung phuong) OR (nhu phuong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - ((hanh trang) or (canh tranh)) cua ((nhung phuong) OR (nhu phuong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((hanh trang) or (canh tranh)) cua ((nhung phuong) OR (nhu phuong)) dan toan cau*.