Talvez deva tentar algumas variações de ortografia:
commuter based » computer based (Expandir a Pesquisa), commute based (Expandir a Pesquisa), commuting based (Expandir a Pesquisa)
rail commuter » daily commuters (Expandir a Pesquisa), trains commuter (Expandir a Pesquisa), daily commutes (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
can newly » a newly (Expandir a Pesquisa), men newly (Expandir a Pesquisa), may newly (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
nat comp » et comp (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), comp la (Expandir a Pesquisa)
a clamp » _ clamp (Expandir a Pesquisa), dna clamp (Expandir a Pesquisa), a claims (Expandir a Pesquisa)
_ rail » _ rain (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( _ nat comp can new ) OR ( j a clamp can newly ))) OR ( _ rail commuter based now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( _ nat comp can new ) or ( j a clamp can newly ))) or ( _ rail commuter based now ))*.