Talvez deva tentar algumas variações de ortografia:
using computers » using computer (Expandir a Pesquisa), using computed (Expandir a Pesquisa), using computerized (Expandir a Pesquisa)
compared cause » compared case (Expandir a Pesquisa), compared cases (Expandir a Pesquisa), complex cause (Expandir a Pesquisa)
early compared » early computed (Expandir a Pesquisa), daily compared (Expandir a Pesquisa), elderly compared (Expandir a Pesquisa)
gel compared » model compared (Expandir a Pesquisa), level compared (Expandir a Pesquisa)
compared a » compared _ (Expandir a Pesquisa), compare a (Expandir a Pesquisa), compare _ (Expandir a Pesquisa)
tmj using » 6j using (Expandir a Pesquisa), j using (Expandir a Pesquisa), sgj using (Expandir a Pesquisa)
cause non » causes non (Expandir a Pesquisa)
a early » a earley (Expandir a Pesquisa), a earl (Expandir a Pesquisa), via early (Expandir a Pesquisa)
j gel » j gelb (Expandir a Pesquisa), j gerl (Expandir a Pesquisa), _ gel (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: (( tmj using computers _ ngoc ) or ((( j gel compared cause non ) or ( a early compared a new ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( tmj using computers _ ngoc ) OR ((( j gel compared cause non ) OR ( a early compared a new )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( tmj using computers _ ngoc ) or ((( j gel compared cause non ) or ( a early compared a new ))))*.