Perhaps you should try some spelling variations:
nucl complex » nacl complex (Expand Search), nuclei complex (Expand Search), cl complex (Expand Search)
jhon carlson » johan carlson (Expand Search), jhon carlos (Expand Search), john carlson (Expand Search)
complex aic » complex air (Expand Search), complex acid (Expand Search), complex a (Expand Search)
comer can » omer can (Expand Search), comer dan (Expand Search), comes can (Expand Search)
can newts » can new (Expand Search), can net (Expand Search), can newly (Expand Search)
aic iron » abc iron (Expand Search), iic iron (Expand Search), zinc iron (Expand Search)
oit jhon » min jhon (Expand Search)
l comer » al comer (Expand Search), el comer (Expand Search), all comer (Expand Search)
3 nucl » 3 null (Expand Search)
da oit » la oit (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 comer can newts ) or ((( 3 nucl complex aic iron ) or ( da oit jhon carlson john ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j l comer can newts ) OR ((( 3 nucl complex aic iron ) OR ( da oit jhon carlson john )))).
• Adding a wildcard symbol may retrieve word variants: (( j l comer can newts ) or ((( 3 nucl complex aic iron ) or ( da oit jhon carlson john ))))*.