Talvez deva tentar algumas variações de ortografia:
unit computer » units computers (Expandir a Pesquisa), tunis computer (Expandir a Pesquisa), ut computer (Expandir a Pesquisa)
coated boron » coated iron (Expandir a Pesquisa), decorated boron (Expandir a Pesquisa), coated porous (Expandir a Pesquisa)
nart coated » net coated (Expandir a Pesquisa), graft coated (Expandir a Pesquisa)
computer a » computer _ (Expandir a Pesquisa)
boron ngoc » horn ngoc (Expandir a Pesquisa)
nair omer » nasir omer (Expandir a Pesquisa), yair omer (Expandir a Pesquisa), cakir omer (Expandir a Pesquisa)
omer can » omer cihan (Expandir a Pesquisa), omer a (Expandir a Pesquisa), omer c (Expandir a Pesquisa)
3 unit » a unit (Expandir a Pesquisa)
a netw » a neto (Expandir a Pesquisa), a neta (Expandir a Pesquisa), a netb (Expandir a Pesquisa)
j nair » _ nair (Expandir a Pesquisa), a nair (Expandir a Pesquisa), c nair (Expandir a Pesquisa)
j nart » _ nart (Expandir a Pesquisa), j nare (Expandir a Pesquisa), j narr (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 a netw ) or ( j nair omer can new ))) or ( j nart coated boron ngoc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( 3 unit computer a netw ) OR ( j nair omer can new ))) OR ( j nart coated boron ngoc )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( 3 unit computer a netw ) or ( j nair omer can new ))) or ( j nart coated boron ngoc ))*.