Perhaps you should try some spelling variations:
sach tranh » canh tranh
sach ngan » sach ngon, sach nha, sach nang
thu sach » tu sach, thuat sach, thuoc sach
tranh ky » trinh ky, thanh ky, hanh ky
sach han » sach tham, sach danh, sach nang
y huyet » ly huyet, ly thuyet, cay huyet
hoc hoi » hoc khoi, hoc hoa, hoc noi
toan » tran

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu sach tranh ky thuat toan khoa ) or ( te ((sach ngan) OR (sach han)) y huyet hoc hoi ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach tranh ky thuat toan khoa ) OR ( te ((sach ngan) OR (sach han)) y huyet hoc hoi )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thu sach tranh ky thuat toan khoa ) or ( te ((sach ngan) OR (sach han)) y huyet hoc hoi ))".
• Adding a wildcard symbol may retrieve word variants: (( thu sach tranh ky thuat toan khoa ) or ( te ((sach ngan) OR (sach han)) y huyet hoc hoi ))*.