Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
manh hung » anh huong
hang nong » thang long, han tong
hanh dong » anh dong, ha dong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
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 chu sach - ((hanh trang) or (manh hung)) cua ((hang nong) or (hanh dong)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh trang) OR (manh hung)) cua ((hang nong) OR (hanh dong)) tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh trang) or (manh hung)) cua ((hang nong) or (hanh dong)) tinh toan cau*.