Perhaps you should try some spelling variations:
final complex » signal complex (Expand Search), fungal complex (Expand Search), focal complex (Expand Search)
complex genes » complex gene (Expand Search), complex genetic (Expand Search)
san carlos » juan carlos (Expand Search), jean carlos (Expand Search)
carlos now » carlos noe (Expand Search), carlos noa (Expand Search), carlos novo (Expand Search)
combs con » combs colin (Expand Search), combs john (Expand Search), combs cody (Expand Search)
genes neo » genes new (Expand Search), genes nef (Expand Search), gene neo (Expand Search)
con note » con notas (Expand Search)
l combs » e combs (Expand Search), _ combs (Expand Search), l comps (Expand Search)
5 final » 05 final (Expand Search), 55 final (Expand Search), _ final (Expand Search)
7.2 nac » 7.2 nacl (Expand Search)
nac san » nach san (Expand Search), ngoc san (Expand Search), nac tran (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 combs con note ) OR ((( 5 final complex genes neo ) OR ( 7.2 nac san carlos now ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j l combs con note ) or ((( 5 final complex genes neo ) or ( 7.2 nac san carlos now ))))*.