Talvez deva tentar algumas variações de ortografia:
paula campos » paulo campos (Expandir a Pesquisa), paula cardoso (Expandir a Pesquisa), avila campos (Expandir a Pesquisa)
campos carla » campos carl (Expandir a Pesquisa), campos karla (Expandir a Pesquisa), campos carlos (Expandir a Pesquisa)
had never » has never (Expandir a Pesquisa), have never (Expandir a Pesquisa), a never (Expandir a Pesquisa)
paulo cnp » paulo cnpq (Expandir a Pesquisa), paulo c.p (Expandir a Pesquisa), paulo cesp (Expandir a Pesquisa)
camp had » camp chad (Expandir a Pesquisa), camp has (Expandir a Pesquisa), camp have (Expandir a Pesquisa)
j paula » j pakula (Expandir a Pesquisa), j panula (Expandir a Pesquisa), j paul (Expandir a Pesquisa)
carla n » carla a (Expandir a Pesquisa), carla _ (Expandir a Pesquisa)
_ paulo » _ paul (Expandir a Pesquisa)
cnp can » crp can (Expandir a Pesquisa), snp can (Expandir a Pesquisa), acbp can (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j ii » j iii (Expandir a Pesquisa), j li (Expandir a Pesquisa), j ti (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 ii) OR (j i)) camp had never ) or ((( j paula campos carla n ) or ( _ paulo cnp can non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( ((j ii) OR (j i)) camp had never ) OR ((( j paula campos carla n ) OR ( _ paulo cnp can non )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( ((j ii) OR (j i)) camp had never ) or ((( j paula campos carla n ) or ( _ paulo cnp can non ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( ((j ii) OR (j i)) camp had never ) or ((( j paula campos carla n ) or ( _ paulo cnp can non ))))*.