Talvez deva tentar algumas variações de ortografia:
compared boron » coated boron (Expandir a Pesquisa), combined boron (Expandir a Pesquisa), colored boron (Expandir a Pesquisa)
nart compared » art compared (Expandir a Pesquisa), wart compared (Expandir a Pesquisa), haart compared (Expandir a Pesquisa)
unit computer » unit computed (Expandir a Pesquisa), units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa)
computer u » computer up (Expandir a Pesquisa), computer _ (Expandir a Pesquisa), computer a (Expandir a Pesquisa)
compr can » comp can (Expandir a Pesquisa), computer can (Expandir a Pesquisa), compared can (Expandir a Pesquisa)
boron ngo » boron nano (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can new (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
3 unit » _ unit (Expandir a Pesquisa), a unit (Expandir a Pesquisa)
j narr » l narr (Expandir a Pesquisa), j nair (Expandir a Pesquisa), j nare (Expandir a Pesquisa)
j nart » _ nart (Expandir a Pesquisa), j nare (Expandir a Pesquisa), c nart (Expandir a Pesquisa)
u net » _ net (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: (((( 3 unit computer u net ) or ( j narr compr can now ))) or ( j nart compared boron ngo ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 unit computer u net ) OR ( j narr compr can now ))) OR ( j nart compared boron ngo )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 unit computer u net ) or ( j narr compr can now ))) or ( j nart compared boron ngo ))*.