Talvez deva tentar algumas variações de ortografia:
airways comparison » airway comparison (Expandir a Pesquisa), pathways comparison (Expandir a Pesquisa), assays comparison (Expandir a Pesquisa)
comparison law » comparison low (Expandir a Pesquisa), comparison land (Expandir a Pesquisa), comparison a (Expandir a Pesquisa)
rate compared » rates compared (Expandir a Pesquisa), rats compared (Expandir a Pesquisa), care compared (Expandir a Pesquisa)
jet airways » rat airways (Expandir a Pesquisa), cat airways (Expandir a Pesquisa), jet arrays (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
law netw » law new (Expandir a Pesquisa), law note (Expandir a Pesquisa), law need (Expandir a Pesquisa)
j rate » j rane (Expandir a Pesquisa), j race (Expandir a Pesquisa), j rath (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: (( _ nat comp can new ) or ((( jet airways comparison law netw ) or ( j rate compared a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ nat comp can new ) OR ((( jet airways comparison law netw ) OR ( j rate compared a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ nat comp can new ) or ((( jet airways comparison law netw ) or ( j rate compared a new ))))*.