Perhaps you should try some spelling variations:
complex salt » complex salts (Expand Search), complex scalp (Expand Search), complex self (Expand Search)
oil complex » cell complex (Expand Search)
geam carlos » gean carlos (Expand Search), em carlos (Expand Search), egea carlos (Expand Search)
carlos noe » carlos nobre (Expand Search), carlos nojek (Expand Search), carlos n (Expand Search)
campo con » campo como (Expand Search), campo c (Expand Search)
salt hugo » saltos hugo (Expand Search), salas hugo (Expand Search), salis hugo (Expand Search)
nacl geam » nacl em (Expand Search), nacl gum (Expand Search), nacl meat (Expand Search)
con neue » con nee (Expand Search), von neuen (Expand Search), con neuro (Expand Search)
l campo » el campo (Expand Search), al campo (Expand Search), l campos (Expand Search)
3 nacl » _ nacl (Expand Search), 3.5 nacl (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 l campo con neue ) OR ((( l oil complex salt hugo ) OR ( 3 nacl geam carlos noe ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j l campo con neue ) or ((( l oil complex salt hugo ) or ( 3 nacl geam carlos noe ))))*.