Perhaps you should try some spelling variations:
metil complex » metal complex (Expand Search), metals complex (Expand Search), met complex (Expand Search)
complex tran » complex trans (Expand Search), complex tehran (Expand Search), complex trait (Expand Search)
carlos nova » carlos novoa (Expand Search), carlos nava (Expand Search), carlos noa (Expand Search)
gil carlos » gil campos (Expand Search)
combs con » combs colin (Expand Search), combs john (Expand Search), combs cody (Expand Search)
0.9 natl » 0.9 nacl (Expand Search)
natl gil » nata gil (Expand Search), paul gil (Expand Search), raul gil (Expand Search)
l combs » e combs (Expand Search), _ combs (Expand Search), l comps (Expand Search)
con new » icon new (Expand Search), con nee (Expand Search), con net (Expand Search)
5 metil » 5 methyl (Expand Search)
ngoc » ngo (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.

• Removing quotes may allow a broader search: (( j l combs con new ) or ((( 5 metil complex tran ngoc ) or ( 0.9 natl gil carlos nova ))))*.