Talvez deva tentar algumas variações de ortografia:
processes systems » process systems (Expandir a Pesquisa), processing systems (Expandir a Pesquisa), process system (Expandir a Pesquisa)
index processes » indexing processes (Expandir a Pesquisa), induced processes (Expandir a Pesquisa), tandem processes (Expandir a Pesquisa)
need process » needs process (Expandir a Pesquisa), feed process (Expandir a Pesquisa), seed process (Expandir a Pesquisa)
process syst » process system (Expandir a Pesquisa), process spot (Expandir a Pesquisa), process ssp (Expandir a Pesquisa)
neural need » neural speed (Expandir a Pesquisa), neural nets (Expandir a Pesquisa), neural net (Expandir a Pesquisa)
kd integral » _ integral (Expandir a Pesquisa), i integral (Expandir a Pesquisa), ii integral (Expandir a Pesquisa)
a integral » la integral (Expandir a Pesquisa), da integral (Expandir a Pesquisa), soja integral (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( iv neural need process syst ) OR ( ((kd integral) OR (a integral)) index processes systems ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( iv neural need process syst ) or ( ((kd integral) OR (a integral)) index processes systems ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( iv neural need process syst ) or ( ((kd integral) OR (a integral)) index processes systems ))*.