Talvez deva tentar algumas variações de ortografia:
trial compared » trial comparing (Expandir a Pesquisa), survival compared (Expandir a Pesquisa), trials comparing (Expandir a Pesquisa)
compared tran » compared can (Expandir a Pesquisa), compaired turlan (Expandir a Pesquisa), compared boron (Expandir a Pesquisa)
naya clamp » aaa clamp (Expandir a Pesquisa)
camp camps » camp camp (Expandir a Pesquisa), campi campos (Expandir a Pesquisa), campo campos (Expandir a Pesquisa)
camps new » campus new (Expandir a Pesquisa), campo new (Expandir a Pesquisa), camps neus (Expandir a Pesquisa)
nay camp » day camp (Expandir a Pesquisa), day camps (Expandir a Pesquisa), gray camp (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
j naya » j nava (Expandir a Pesquisa), e naya (Expandir a Pesquisa), j naga (Expandir a Pesquisa)
j nay » j nagy (Expandir a Pesquisa), _ nay (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: (( _ trial compared tran (ngon OR ngo) ) or ((( j naya clamp a new ) or ( j nay camp camps new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ trial compared tran (ngon OR ngo) ) OR ((( j naya clamp a new ) OR ( j nay camp camps new )))).
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( _ trial compared tran (ngon OR ngo) ) or ((( j naya clamp a new ) or ( j nay camp camps new ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ trial compared tran (ngon OR ngo) ) or ((( j naya clamp a new ) or ( j nay camp camps new ))))*.