Talvez deva tentar algumas variações de ortografia:
hegarty compared » severity compared (Expandir a Pesquisa), entity compared (Expandir a Pesquisa), density compared (Expandir a Pesquisa)
gel compared » model compared (Expandir a Pesquisa), level compared (Expandir a Pesquisa)
compared a » compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
j hegarty » n hegarty (Expandir a Pesquisa), a hegarty (Expandir a Pesquisa), c hegarty (Expandir a Pesquisa)
nat camp » fat camp (Expandir a Pesquisa), a camp (Expandir a Pesquisa), ac camp (Expandir a Pesquisa)
ca newly » can newly (Expandir a Pesquisa), a newly (Expandir a Pesquisa), cr newly (Expandir a Pesquisa)
camp ca » camp a (Expandir a Pesquisa), camp c (Expandir a Pesquisa), camp camp (Expandir a Pesquisa)
a neta » a neto (Expandir a Pesquisa), a nectar (Expandir a Pesquisa)
a gel » _ gel (Expandir a Pesquisa), a gil (Expandir a Pesquisa), i gel (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( a gel compared a neta ) OR ( j hegarty compared _ new ))) OR ( _ nat camp ca newly ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a gel compared a neta ) OR ( j hegarty compared _ new ))) OR ( _ nat camp ca newly ))*.