Perhaps you should try some spelling variations:
comprende las » comprender las (Expand Search), comprende la (Expand Search), comprende los (Expand Search)
la comprende » la comprender (Expand Search), a comprender (Expand Search), a comprendre (Expand Search)
pair complex » repair complex (Expand Search), repair complexes (Expand Search)
aid company » grid company (Expand Search), land company (Expand Search), rfid company (Expand Search)
las newly » a newly (Expand Search), its newly (Expand Search), can newly (Expand Search)
company a » company _ (Expand Search)
case now » cases now (Expand Search), case non (Expand Search), case new (Expand Search)
5 pair » 5 pairs (Expand Search), a pair (Expand Search), _ pair (Expand Search)
3 aid » 3 acid (Expand Search), 3 aids (Expand Search), _ aid (Expand Search)
a now » a new (Expand Search), a non (Expand Search), _ now (Expand Search)
j la » j a (Expand Search), j l (Expand Search), j da (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 la comprende las newly ) OR ((( 5 pair complex case now ) OR ( 3 aid company a now ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j la comprende las newly ) or ((( 5 pair complex case now ) or ( 3 aid company a now ))))*.