Perhaps you should try some spelling variations:
comouter cases » computer case (Expand Search), computer classes (Expand Search), computer caries (Expand Search)
del comouter » model computer (Expand Search), del composteo (Expand Search), del comite (Expand Search)
dna clamp » a clamp (Expand Search)
clamp can » clamp a (Expand Search), clamp ar (Expand Search), clamp cum (Expand Search)
can newts » can net (Expand Search), can newly (Expand Search)
cases now » cases new (Expand Search), cases non (Expand Search), case now (Expand Search)
case can » cases can (Expand Search), case con (Expand Search), case case (Expand Search)
j nail » _ nail (Expand Search), a nail (Expand Search), 3 nail (Expand Search)
1 dna » _ dna (Expand Search), a dna (Expand Search)
j del » y del (Expand Search), m del (Expand Search), _ del (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 nail case can new ) or ( 1 dna clamp can newts ))) or ( j del comouter cases now ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( j nail case can new ) OR ( 1 dna clamp can newts ))) OR ( j del comouter cases now )).
• Adding a wildcard symbol may retrieve word variants: (((( j nail case can new ) or ( 1 dna clamp can newts ))) or ( j del comouter cases now ))*.