Perhaps you should try some spelling variations:
rates compared » diabetes compared (Expand Search)
computer case » computer based (Expand Search), computer code (Expand Search), computer can (Expand Search)
compared can » compared a (Expand Search), compared law (Expand Search), companies can (Expand Search)
clamp ar » clamp a (Expand Search), clamp _ (Expand Search), clamp j (Expand Search)
ar newts » can newts (Expand Search), _ newts (Expand Search), war news (Expand Search)
case non » cause non (Expand Search), case note (Expand Search), use non (Expand Search)
j rates » j raes (Expand Search), j ramesh (Expand Search), j rajesh (Expand Search)
a clamp » _ clamp (Expand Search), a claims (Expand Search)
j small » 1 small (Expand Search), 2 small (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( j rates compared can new ) or ( j a clamp ar newts ))) or ( j small computer case non ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( j rates compared can new ) OR ( j a clamp ar newts ))) OR ( j small computer case non ))*.