Talvez deva tentar algumas variações de ortografia:
level compared » levels compared (Expandir a Pesquisa), model compared (Expandir a Pesquisa), level comparison (Expandir a Pesquisa)
compared leaf » compared law (Expandir a Pesquisa), compared less (Expandir a Pesquisa), compared great (Expandir a Pesquisa)
apl computer » maple computer (Expandir a Pesquisa), call computer (Expandir a Pesquisa), dal computer (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
compared i » compared ii (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), compared a (Expandir a Pesquisa)
25 level » 125 level (Expandir a Pesquisa), 5 level (Expandir a Pesquisa), 125 levels (Expandir a Pesquisa)
i assay » ii assay (Expandir a Pesquisa)
i note » i notes (Expandir a Pesquisa), ii note (Expandir a Pesquisa), vi note (Expandir a Pesquisa)
nora » nor (Expandir a Pesquisa), nova (Expandir a Pesquisa), nota (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: (( _ apl computer a new ) or ((( 25 level compared i note ) or ( i assay compared leaf nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ apl computer a new ) OR ((( 25 level compared i note ) OR ( i assay compared leaf nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ apl computer a new ) or ((( 25 level compared i note ) or ( i assay compared leaf nora ))))*.