Perhaps you should try some spelling variations:
complex trinh » complex trial (Expand Search), complex trans (Expand Search), complex tric (Expand Search)
tal complex » al complex (Expand Search), metal complex (Expand Search), fetal complex (Expand Search)
nano carlos » cano carlos (Expand Search), nino carlos (Expand Search), nuno carlos (Expand Search)
trinh ngoc » dinh ngoc (Expand Search), minh ngoc (Expand Search), thanh ngoc (Expand Search)
carlos noa » carlos noe (Expand Search), carlos nodal (Expand Search), carlos nava (Expand Search)
combs con » combs colin (Expand Search), combs john (Expand Search), combs cody (Expand Search)
nacl nano » nacl kno (Expand Search), nacl nabr (Expand Search), nacl naoh (Expand Search)
0.9 nacl » 3.5 nacl (Expand Search)
l combs » e combs (Expand Search), _ combs (Expand Search), l comps (Expand Search)
con net » con nee (Expand Search), non net (Expand Search), upon net (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j l combs con net ) or ((( 5 tal complex trinh ngoc ) or ( 0.9 nacl nano carlos noa ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j l combs con net ) OR ((( 5 tal complex trinh ngoc ) OR ( 0.9 nacl nano carlos noa )))).
• Adding a wildcard symbol may retrieve word variants: (( j l combs con net ) or ((( 5 tal complex trinh ngoc ) or ( 0.9 nacl nano carlos noa ))))*.