Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
complex diet » complex direct (Expandir a Pesquisa), complex dimer (Expandir a Pesquisa), complex de (Expandir a Pesquisa)
caso4 carlos » caso carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), casal carlos (Expandir a Pesquisa)
carlos nodal » carlos vidal (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
nucl caso4 » nacl caso4 (Expandir a Pesquisa)
diet ngoc » diem ngoc (Expandir a Pesquisa), diep ngoc (Expandir a Pesquisa), dieu ngoc (Expandir a Pesquisa)
3.5 nucl » 3.5 nacl (Expandir a Pesquisa), 34.5 null (Expandir a Pesquisa), 3 nucl (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
combs 2 » combs _ (Expandir a Pesquisa), combs c (Expandir a Pesquisa), combs b (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (( j e combs 2 neu ) or ((( 5 methyl complex diet ngoc ) or ( 3.5 nucl caso4 carlos nodal ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs 2 neu ) OR ((( 5 methyl complex diet ngoc ) OR ( 3.5 nucl caso4 carlos nodal )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs 2 neu ) or ((( 5 methyl complex diet ngoc ) or ( 3.5 nucl caso4 carlos nodal ))))*.