Talvez deva tentar algumas variações de ortografia:
computer based » computer aided (Expandir a Pesquisa)
pen computer » open computer (Expandir a Pesquisa), pen computers (Expandir a Pesquisa), ten computer (Expandir a Pesquisa)
nail company » rail company (Expandir a Pesquisa), oil company (Expandir a Pesquisa), retail company (Expandir a Pesquisa)
company car » company case (Expandir a Pesquisa), company a (Expandir a Pesquisa), company carlos (Expandir a Pesquisa)
nacl hocl » nacl kcl (Expandir a Pesquisa), nacl cacl (Expandir a Pesquisa), nacl alcl (Expandir a Pesquisa)
based now » based snow (Expandir a Pesquisa), based non (Expandir a Pesquisa), based no2 (Expandir a Pesquisa)
hocl can » oil can (Expandir a Pesquisa), coil can (Expandir a Pesquisa), hocl non (Expandir a Pesquisa)
car now » care now (Expandir a Pesquisa), card now (Expandir a Pesquisa), car non (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
3 nail » _ nail (Expandir a Pesquisa), a nail (Expandir a Pesquisa), 5 nail (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j pen » j pena (Expandir a Pesquisa), j peng (Expandir a Pesquisa), j penn (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: (((( 3 nail company car now ) OR ( 3 nacl hocl can now ))) OR ( j pen computer based now ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 nail company car now ) or ( 3 nacl hocl can now ))) or ( j pen computer based now ))*.