Talvez deva tentar algumas variações de ortografia:
reaction systems » reaction system (Expandir a Pesquisa), detection systems (Expandir a Pesquisa), production systems (Expandir a Pesquisa)
lade reaction » late reaction (Expandir a Pesquisa), lake reaction (Expandir a Pesquisa), flare reaction (Expandir a Pesquisa)
systems dss » systems cdss (Expandir a Pesquisa), system dss (Expandir a Pesquisa), systems does (Expandir a Pesquisa)
cent nerve » recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (Expandir a Pesquisa)
j lade » j ladle (Expandir a Pesquisa), j lane (Expandir a Pesquisa), j lake (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j cent nerve cat due ) OR ((( j bent nerve cat due ) OR ( j lade reaction systems dss ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cent nerve cat due ) OR ((( j bent nerve cat due ) OR ( j lade reaction systems dss ))))*.