Talvez deva tentar algumas variações de ortografia:
reaction systems » reaction system (Expandir a Pesquisa), detection systems (Expandir a Pesquisa), production systems (Expandir a Pesquisa)
absent reaction » absent reduction (Expandir a Pesquisa), agent reaction (Expandir a Pesquisa), patient reaction (Expandir a Pesquisa)
mehta nerve » mehta nave (Expandir a Pesquisa), mehta nee (Expandir a Pesquisa), mehta neev (Expandir a Pesquisa)
systems das » systems dss (Expandir a Pesquisa), systems dds (Expandir a Pesquisa), systems data (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve ct (Expandir a Pesquisa), nerve cut (Expandir a Pesquisa)
_ absent » _ absence (Expandir a Pesquisa)
j mehta » a mehta (Expandir a Pesquisa), _ mehta (Expandir a Pesquisa), k mehta (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (( i cent nerve cat due ) or ((( j mehta nerve cat due ) or ( _ absent reaction systems das ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i cent nerve cat due ) OR ((( j mehta nerve cat due ) OR ( _ absent reaction systems das )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i cent nerve cat due ) or ((( j mehta nerve cat due ) or ( _ absent reaction systems das ))))*.