Perhaps you should try some spelling variations:
complex cause » complex causes (Expand Search), complex case (Expand Search), complex care (Expand Search)
carlos merino » carlos americo (Expand Search), carlos marin (Expand Search), carlos medina (Expand Search)
nacl complex » nac56 complex (Expand Search), caml complex (Expand Search), cl complex (Expand Search)
peony carlos » leon carlos (Expand Search), cony carlos (Expand Search), rony carlos (Expand Search)
comer can » omer can (Expand Search), comer dan (Expand Search), comes can (Expand Search)
cause non » causes non (Expand Search)
oil peony » wild peony (Expand Search), liu peony (Expand Search), oil poly (Expand Search)
e comer » de comer (Expand Search), e come (Expand Search), e comecar (Expand Search)
l oil » _ oil (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 e comer can new ) OR ((( m nacl complex cause non ) OR ( l oil peony carlos merino ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j e comer can new ) or ((( m nacl complex cause non ) or ( l oil peony carlos merino ))))*.