Perhaps you should try some spelling variations:
converts non » converts _ (Expand Search), converts a (Expand Search)
new converts » new convert (Expand Search), genes converts (Expand Search), never converts (Expand Search)
comps bad » comps la (Expand Search), comps las (Expand Search), comps b (Expand Search)
bad fever » bed fever (Expand Search), based fever (Expand Search), quad fever (Expand Search)
mella com » mella comp (Expand Search), stella com (Expand Search), falla com (Expand Search)
l comps » m comps (Expand Search)
j mella » j mello (Expand Search), j mela (Expand Search), j melia (Expand Search)
com al » com als (Expand Search), com alta (Expand Search), com alto (Expand Search)
al non » al noman (Expand Search)
3 new » a new (Expand Search), _ new (Expand Search), 2 new (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 comps bad fever ) OR ((( j mella com al non ) OR ( 3 new converts non non ))))~.
• Adding a wildcard symbol may retrieve word variants: (( j l comps bad fever ) or ((( j mella com al non ) or ( 3 new converts non non ))))*.