Talvez deva tentar algumas variações de ortografia:
computer courses » computer course (Expandir a Pesquisa), computer codes (Expandir a Pesquisa), computer cursor (Expandir a Pesquisa)
del computer » dal computer (Expandir a Pesquisa), delta computer (Expandir a Pesquisa), model computer (Expandir a Pesquisa)
courses now » courses how (Expandir a Pesquisa), courses new (Expandir a Pesquisa), courses nor (Expandir a Pesquisa)
nair clamp » nair alap (Expandir a Pesquisa)
clamp can » clamp a (Expandir a Pesquisa), clamp ar (Expandir a Pesquisa), clamp cum (Expandir a Pesquisa)
dna clamp » a clamp (Expandir a Pesquisa)
j nair » _ nair (Expandir a Pesquisa), a nair (Expandir a Pesquisa), j nail (Expandir a Pesquisa)
j dna » _ dna (Expandir a Pesquisa), a dna (Expandir a Pesquisa), 1 dna (Expandir a Pesquisa)
j del » y del (Expandir a Pesquisa), m del (Expandir a Pesquisa), _ del (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 nair clamp can new ) or ( j dna clamp _ newts ))) or ( j del computer courses now ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j nair clamp can new ) OR ( j dna clamp _ newts ))) OR ( j del computer courses now )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j nair clamp can new ) or ( j dna clamp _ newts ))) or ( j del computer courses now ))*.