Talvez deva tentar algumas variações de ortografia:
complex cases » complex causes (Expandir a Pesquisa), complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa)
oil complex » model complex (Expandir a Pesquisa)
rnap clamp » dna clamp (Expandir a Pesquisa), ap clamp (Expandir a Pesquisa), dnan clamp (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
co can » co con (Expandir a Pesquisa), co canal (Expandir a Pesquisa), co chain (Expandir a Pesquisa)
5 rnap » 5 rna (Expandir a Pesquisa), _ rnap (Expandir a Pesquisa), a rnap (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
l oil » _ oil (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: (((( 3 nacl co can new ) or ( l oil complex cases new ))) or ( 5 rnap clamp a netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 nacl co can new ) OR ( l oil complex cases new ))) OR ( 5 rnap clamp a netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nacl co can new ) or ( l oil complex cases new ))) or ( 5 rnap clamp a netw ))*.