Perhaps you should try some spelling variations:
nab clamp » a clamp (Expand Search), aaa clamp (Expand Search), ap clamp (Expand Search)
nat comp » nat comm (Expand Search), et comp (Expand Search), nat cov (Expand Search)
comp das » comp da (Expand Search), complo das (Expand Search), compra das (Expand Search)
clamp pr » clamp pcr (Expand Search), clamp ar (Expand Search), clamp p (Expand Search)
cant now » plant now (Expand Search), canal now (Expand Search), act now (Expand Search)
das non » das n.n (Expand Search), das noz (Expand Search), das nina (Expand Search)
can now » can non (Expand Search), can new (Expand Search), can ngoc (Expand Search)
pr nos » por nos (Expand Search), par nos (Expand Search), ar nos (Expand Search)
j nat » j nart (Expand Search), _ nat (Expand Search), a nat (Expand Search)
_ nab » _ nad (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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( j nat comp das non ) OR ((( _ nab clamp pr nos ) OR ( j e com ((cant now) OR (can now)) ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j nat comp das non ) or ((( _ nab clamp pr nos ) or ( j e com ((cant now) or (can now)) ))))*.