Perhaps you should try some spelling variations:
computer cause » computer case (Expand Search), computer course (Expand Search), computer use (Expand Search)
nat compared » fat compared (Expand Search), rat compared (Expand Search), cat compared (Expand Search)
compared law » compared a (Expand Search), compared can (Expand Search), compared _ (Expand Search)
gil computer » il computer (Expand Search), hill computer (Expand Search), dal computer (Expand Search)
clamp pcr » lamp pcr (Expand Search), clamp pcna (Expand Search), amp pcr (Expand Search)
cause new » causes new (Expand Search), use new (Expand Search), cause non (Expand Search)
law near » gaw near (Expand Search), low near (Expand Search), flow near (Expand Search)
a clamp » _ clamp (Expand Search), a claims (Expand Search)
pcr new » ccr new (Expand Search), pcr next (Expand Search)
j nat » j nart (Expand Search), _ nat (Expand Search), a nat (Expand Search)
a gil » a gis (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 nat compared law near ) or ( j a clamp pcr new ))) or ( a gil computer cause new ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( j nat compared law near ) OR ( j a clamp pcr new ))) OR ( a gil computer cause new )).
• Adding a wildcard symbol may retrieve word variants: (((( j nat compared law near ) or ( j a clamp pcr new ))) or ( a gil computer cause new ))*.