Talvez deva tentar algumas variações de ortografia:
active compared » activity compared (Expandir a Pesquisa), practice compared (Expandir a Pesquisa), active compound (Expandir a Pesquisa)
rats compared » rates compared (Expandir a Pesquisa)
compared can » compared law (Expandir a Pesquisa), companies can (Expandir a Pesquisa), compared _ (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa)
j active » bhj active (Expandir a Pesquisa)
nad camp » nad cap (Expandir a Pesquisa), nad adp (Expandir a Pesquisa), nad caps (Expandir a Pesquisa)
camp can » clamp can (Expandir a Pesquisa), camp ca (Expandir a Pesquisa), amp can (Expandir a Pesquisa)
can netw » can net (Expandir a Pesquisa), can newts (Expandir a Pesquisa), can now (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j rats » j rath (Expandir a Pesquisa), j raes (Expandir a Pesquisa), rij rats (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 active compared a netw ) or ( j rats compared can new ))) or ( _ nad camp can netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j active compared a netw ) OR ( j rats compared can new ))) OR ( _ nad camp can netw )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j active compared a netw ) or ( j rats compared can new ))) or ( _ nad camp can netw ))*.