Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
doi chieu » doc hieu, doi chi, mot chieu
quan dung » quang dung, quan duong, qua dung
trong tap » trong thap, tong tap, trong tan
ho chieu » theo chieu, hoc thieu, mot chieu
tap toan » tap doan, tap quan, bai 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: ((doi chieu) OR (ho chieu)) sach - hanh trinh quan dung trong tap toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) sach - hanh trinh quan dung trong tap toan cau*".