Talvez deva tentar algumas variações de ortografia:
computer courses » computer course (Expandir a Pesquisa), computer codes (Expandir a Pesquisa), computer cursor (Expandir a Pesquisa)
about computer » ut computer (Expandir a Pesquisa), about complex (Expandir a Pesquisa), without computer (Expandir a Pesquisa)
courses new » nurses new (Expandir a Pesquisa), course news (Expandir a Pesquisa), courses de (Expandir a Pesquisa)
lo compra » la compra (Expandir a Pesquisa), o compra (Expandir a Pesquisa), por compra (Expandir a Pesquisa)
lo compro » yo compro (Expandir a Pesquisa), do compro (Expandir a Pesquisa), nao compro (Expandir a Pesquisa)
can net » can next (Expandir a Pesquisa), can new (Expandir a Pesquisa), dan net (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
a about » a abou (Expandir a Pesquisa), a aboud (Expandir a Pesquisa), ado about (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: (( j ((lo compra) OR (lo compro)) ((can net) or (can now)) ) or ( a about computer courses new ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j ((lo compra) OR (lo compro)) ((can net) OR (can now)) ) OR ( a about computer courses new ))*.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j ((lo compra) OR (lo compro)) ((can net) or (can now)) ) or ( a about computer courses new ))*".