Talvez deva tentar algumas variações de ortografia:
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
computer can » computers can (Expandir a Pesquisa), computer case (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
narr comp » barr com (Expandir a Pesquisa), parr comb (Expandir a Pesquisa)
comp can » camp can (Expandir a Pesquisa), chimp can (Expandir a Pesquisa), clamp can (Expandir a Pesquisa)
barr mmr » barr m.r (Expandir a Pesquisa), barr mm (Expandir a Pesquisa), barr mr (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
mmr dan » mmr can (Expandir a Pesquisa), xmr dan (Expandir a Pesquisa), merr dan (Expandir a Pesquisa)
dan now » dan non (Expandir a Pesquisa), plan now (Expandir a Pesquisa), dan nong (Expandir a Pesquisa)
j narr » l narr (Expandir a Pesquisa), j nair (Expandir a Pesquisa), j nare (Expandir a Pesquisa)
l barr » el barr (Expandir a Pesquisa), l bark (Expandir a Pesquisa), l barros (Expandir a Pesquisa)
a unit » a united (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j narr comp can now ) OR ( l barr mmr dan now ))) OR ( a unit computer can new ))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j narr comp can now ) OR ( l barr mmr dan now ))) OR ( a unit computer can new ))*.