Talvez deva tentar algumas variações de ortografia:
paul campo » paula campo (Expandir a Pesquisa), paulo campos (Expandir a Pesquisa), paula campos (Expandir a Pesquisa)
campo can » campo con (Expandir a Pesquisa), camp can (Expandir a Pesquisa), campo canar (Expandir a Pesquisa)
can near » can never (Expandir a Pesquisa), can new (Expandir a Pesquisa)
can ning » chan ning (Expandir a Pesquisa), yan ning (Expandir a Pesquisa), han ning (Expandir a Pesquisa)
ali cem » ali c.m (Expandir a Pesquisa), ali cm (Expandir a Pesquisa), nazli cem (Expandir a Pesquisa)
cem can » cem ca (Expandir a Pesquisa), cem mocan (Expandir a Pesquisa), cem ozcan (Expandir a Pesquisa)
can non » dan non (Expandir a Pesquisa), than non (Expandir a Pesquisa)
co2 can » co2 dan (Expandir a Pesquisa), co2 case (Expandir a Pesquisa), co2 dans (Expandir a Pesquisa)
3 nacl » m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j ali » m ali (Expandir a Pesquisa), _ ali (Expandir a Pesquisa), a ali (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 ali cem can near ) or ((( j paul campo can non ) or ( ((3 nacl) OR (_ nacl)) co2 can ning ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j ali cem can near ) OR ((( j paul campo can non ) OR ( ((3 nacl) OR (_ nacl)) co2 can ning )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j ali cem can near ) or ((( j paul campo can non ) or ( ((3 nacl) OR (_ nacl)) co2 can ning ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j ali cem can near ) or ((( j paul campo can non ) or ( ((3 nacl) OR (_ nacl)) co2 can ning ))))*.