Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
bang song » nang song
song sang » song song, song hang, luong sang
sang than » cang thang, dang thanh, sang tao
trinh va » trinh van, trinh vat, trinh ve
than cau » toan cau, phan cau, than cap
va bang » va nang, va lang, va ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (mot chieu)) sach - hanh trinh va bang song sang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (mot chieu)) sach - hanh trinh va bang song sang than cau*.