Perhaps you should try some spelling variations:
compleja trinh » compleja tipo (Expand Search), compleja trama (Expand Search), compleja triplex (Expand Search)
carlos node » carlos noe (Expand Search), carlos noda (Expand Search), carlos nobre (Expand Search)
y compleja » la compleja (Expand Search), y complejidad (Expand Search)
trinh quot » trinh quoc (Expand Search), tinh quoc (Expand Search), trinh muoi (Expand Search)
sao carlos » joao carlos (Expand Search)
colin new » coli new (Expand Search), colic new (Expand Search), colon new (Expand Search)
7.5 nacl » 3.5 nacl (Expand Search), 0.9 nacl (Expand Search)
nacl sao » nacl salt (Expand Search), nacl nano (Expand Search), nacl naoh (Expand Search)
e combs » sex combs (Expand Search)
5 y » 5 yl (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 e combs colin new ) or ((( 5 y compleja trinh quot ) or ( 7.5 nacl sao carlos node ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j e combs colin new ) OR ((( 5 y compleja trinh quot ) OR ( 7.5 nacl sao carlos node )))).
• Adding a wildcard symbol may retrieve word variants: (( j e combs colin new ) or ((( 5 y compleja trinh quot ) or ( 7.5 nacl sao carlos node ))))*.