Perhaps you should try some spelling variations:
complex dinh » complex dinj (Expand Search), complex diet (Expand Search), complex disc (Expand Search)
tal complex » metal complex (Expand Search), fetal complex (Expand Search), real complex (Expand Search)
kno carlos » cano carlos (Expand Search), nino carlos (Expand Search), pino carlos (Expand Search)
carlos noe » carlos nobre (Expand Search), carlos nojek (Expand Search), carlos n (Expand Search)
john note » john pote (Expand Search), john nott (Expand Search), john nute (Expand Search)
dinh ngoc » bich ngoc (Expand Search), anh ngoc (Expand Search)
l coombs » l coombes (Expand Search), _ coombs (Expand Search), g coombs (Expand Search)
7.5 nacl » 3.5 nacl (Expand Search), 0.9 nacl (Expand Search)
nacl kno » nacl nano (Expand Search), nacl en (Expand Search), nacl kcl (Expand Search)
5 tal » 5 tail (Expand Search), _ tal (Expand Search), e tal (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 coombs john note ) OR ((( 5 tal complex dinh ngoc ) OR ( 7.5 nacl kno carlos noe ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j l coombs john note ) or ((( 5 tal complex dinh ngoc ) or ( 7.5 nacl kno carlos noe ))))*.