Talvez deva tentar algumas variações de ortografia:
computer courses » computer course (Expandir a Pesquisa), computer codes (Expandir a Pesquisa), computer cursor (Expandir a Pesquisa)
claims rasch » claims cash (Expandir a Pesquisa), claims based (Expandir a Pesquisa), claims act (Expandir a Pesquisa)
courses do » course do (Expandir a Pesquisa), courses de (Expandir a Pesquisa), courses how (Expandir a Pesquisa)
combe has » pombe has (Expandir a Pesquisa), combe a (Expandir a Pesquisa), lobe has (Expandir a Pesquisa)
has never » have never (Expandir a Pesquisa), a never (Expandir a Pesquisa)
li combe » la combe (Expandir a Pesquisa), _ combe (Expandir a Pesquisa), dr combe (Expandir a Pesquisa)
a claims » _ claims (Expandir a Pesquisa)
j vhdl » _ vhdl (Expandir a Pesquisa), a vhdl (Expandir a Pesquisa)
j li » j l (Expandir a Pesquisa), j i (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 li combe has never ) OR ( j a claims rasch newts ))) OR ( j vhdl computer courses do ))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(((( j li combe has never ) OR ( j a claims rasch newts ))) OR ( j vhdl computer courses do ))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j li combe has never ) OR ( j a claims rasch newts ))) OR ( j vhdl computer courses do ))*.