Perhaps you should try some spelling variations:
methyl complex » metal complex (Expand Search), method complex (Expand Search), methylase complex (Expand Search)
complex bio » complex b (Expand Search), complex binds (Expand Search), complex bone (Expand Search)
comes down » come down (Expand Search), goes down (Expand Search), comt down (Expand Search)
nel bacino » del bacino (Expand Search), del bacilo (Expand Search), nel latino (Expand Search)
carlos noa » carlos noe (Expand Search), carlos nodal (Expand Search), carlos nava (Expand Search)
down net » down new (Expand Search), down beat (Expand Search), down near (Expand Search)
bio nilo » rio nilo (Expand Search), bio nio (Expand Search), do nilo (Expand Search)
l comes » l comps (Expand Search), l coles (Expand Search), l comas (Expand Search)
3.5 nel » 3.5 nacl (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j l comes down net ) or ((( 5 methyl complex bio nilo ) or ( 3.5 nel bacino carlos noa ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j l comes down net ) OR ((( 5 methyl complex bio nilo ) OR ( 3.5 nel bacino carlos noa )))).
• Adding a wildcard symbol may retrieve word variants: (( j l comes down net ) or ((( 5 methyl complex bio nilo ) or ( 3.5 nel bacino carlos noa ))))*.