Perhaps you should try some spelling variations:
complex tran » complex trans (Expand Search), complex tehran (Expand Search), complex trait (Expand Search)
carlos rojek » carlos nojek (Expand Search), carlos rojas (Expand Search), carlos roger (Expand Search)
tal complex » al complex (Expand Search), metal complex (Expand Search), fetal complex (Expand Search)
compost de » composto de (Expand Search), compostos de (Expand Search), compost _ (Expand Search)
l compost » el compost (Expand Search), l composti (Expand Search), _ compost (Expand Search)
7.5 nacl » 3.5 nacl (Expand Search), 0.9 nacl (Expand Search)
nacl de » nacl e (Expand Search), nacl diet (Expand Search)
de nee » de neef (Expand Search), de neem (Expand Search), de neer (Expand Search)
5 tal » 5 tail (Expand Search), _ tal (Expand Search), e tal (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j l compost de nee ) or ((( 5 tal complex tran ngoc ) or ( 7.5 nacl de carlos rojek ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( j l compost de nee ) OR ((( 5 tal complex tran ngoc ) OR ( 7.5 nacl de carlos rojek )))).
• Adding a wildcard symbol may retrieve word variants: (( j l compost de nee ) or ((( 5 tal complex tran ngoc ) or ( 7.5 nacl de carlos rojek ))))*.