Perhaps you should try some spelling variations:
coat complex » cobalt complex (Expand Search), joint complex (Expand Search), about complex (Expand Search)
complex tear » complex tears (Expand Search), complex than (Expand Search), complex trait (Expand Search)
carmo carlos » cardo carlos (Expand Search), caro carlos (Expand Search), carlo carlos (Expand Search)
carlos nora » carlos mora (Expand Search), carlos nara (Expand Search), carlos noa (Expand Search)
hobbs john » hobbs jean (Expand Search)
john new » john agnew (Expand Search), john neil (Expand Search), john n (Expand Search)
tear nlo » tear flow (Expand Search), tear il (Expand Search)
0.9 nacl » 3.5 nacl (Expand Search)
5 coat » 5 coal (Expand Search), b coat (Expand Search), 5 cobalt (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 j hobbs john new ) or ((( 5 coat complex tear nlo ) or ( 0.9 nacl carmo carlos nora ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j j hobbs john new ) OR ((( 5 coat complex tear nlo ) OR ( 0.9 nacl carmo carlos nora )))).
• Adding a wildcard symbol may retrieve word variants: (( j j hobbs john new ) or ((( 5 coat complex tear nlo ) or ( 0.9 nacl carmo carlos nora ))))*.