Talvez deva tentar algumas variações de ortografia:
costs comparing » cases comparing (Expandir a Pesquisa), cells comparing (Expandir a Pesquisa), costs compared (Expandir a Pesquisa)
cast compared » cost compared (Expandir a Pesquisa), cases compared (Expandir a Pesquisa), test compared (Expandir a Pesquisa)
comparing vvi » comparing vein (Expandir a Pesquisa), comparing va (Expandir a Pesquisa), comparing v (Expandir a Pesquisa)
nat computer » cat computer (Expandir a Pesquisa), fast computer (Expandir a Pesquisa), icat computer (Expandir a Pesquisa)
compared la » compared law (Expandir a Pesquisa), compared a (Expandir a Pesquisa), compared leaf (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
vvi ngoc » thi ngoc (Expandir a Pesquisa), vu ngoc (Expandir a Pesquisa), van ngoc (Expandir a Pesquisa)
la ngoc » lam ngoc (Expandir a Pesquisa), le ngoc (Expandir a Pesquisa), ha ngoc (Expandir a Pesquisa)
c costs » c costa (Expandir a Pesquisa), c cost (Expandir a Pesquisa), c costi (Expandir a Pesquisa)
c cast » c case (Expandir a Pesquisa), c caat (Expandir a Pesquisa), c cas9 (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
_ nat » _ net (Expandir a Pesquisa), _ nad (Expandir a Pesquisa), _ nab (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: (((( c cast compared la ngoc ) or ( c costs comparing vvi ngoc ))) or ( _ nat computer a netw ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( c cast compared la ngoc ) OR ( c costs comparing vvi ngoc ))) OR ( _ nat computer a netw ))*.