Perhaps you should try some spelling variations:
complex tried » complex trial (Expand Search), complex tree (Expand Search), complex tric (Expand Search)
cano carlos » luciano carlos (Expand Search), bacino carlos (Expand Search), solano carlos (Expand Search)
carlos nota » carlos mota (Expand Search), carlos noa (Expand Search), carlos noda (Expand Search)
mt complex » most complex (Expand Search), cst complex (Expand Search), ift complex (Expand Search)
tried ngoc » trieu ngoc (Expand Search), trinh ngoc (Expand Search), tien ngoc (Expand Search)
combs non » combs john (Expand Search), combat non (Expand Search), combs jan (Expand Search)
nacl cano » nacl nano (Expand Search), nacl caso4 (Expand Search), nacl cacl (Expand Search)
l combs » e combs (Expand Search), _ combs (Expand Search), l comps (Expand Search)
non net » non nest (Expand Search), con net (Expand Search), non nef (Expand Search)
5 mt » 5 ht (Expand Search), _ mt (Expand Search), 5 mg (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 combs non net ) OR ((( 5 mt complex tried ngoc ) OR ( 3.5 nacl cano carlos nota ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j l combs non net ) or ((( 5 mt complex tried ngoc ) or ( 3.5 nacl cano carlos nota ))))*.