Talvez deva tentar algumas variações de ortografia:
coated boron » coated iron (Expandir a Pesquisa), decorated boron (Expandir a Pesquisa), coated porous (Expandir a Pesquisa)
nacl coated » nacl loaded (Expandir a Pesquisa), pcl coated (Expandir a Pesquisa), nacl compared (Expandir a Pesquisa)
nail clamp » nail lamp (Expandir a Pesquisa), tail clamp (Expandir a Pesquisa), coil clamp (Expandir a Pesquisa)
boron nga » boron anna (Expandir a Pesquisa), barron nga (Expandir a Pesquisa), boron a (Expandir a Pesquisa)
gram mass » grain mass (Expandir a Pesquisa), beam mass (Expandir a Pesquisa), gram lars (Expandir a Pesquisa)
clamp a » clamp _ (Expandir a Pesquisa), clamp j (Expandir a Pesquisa)
mass cu » mass ct (Expandir a Pesquisa), mass c2 (Expandir a Pesquisa), mass co (Expandir a Pesquisa)
j nacl » 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa), 2 nacl (Expandir a Pesquisa)
j nail » a nail (Expandir a Pesquisa), 3 nail (Expandir a Pesquisa), 5 nail (Expandir a Pesquisa)
j gram » j gray (Expandir a Pesquisa), j gran (Expandir a Pesquisa), j graf (Expandir a Pesquisa)
cu non » icu non (Expandir a Pesquisa), ou non (Expandir a Pesquisa), du non (Expandir a Pesquisa)
a now » a new (Expandir a Pesquisa), a non (Expandir a Pesquisa), _ now (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 nacl coated boron nga ) or ((( j nail clamp a now ) or ( j gram mass cu non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nacl coated boron nga ) OR ((( j nail clamp a now ) OR ( j gram mass cu non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nacl coated boron nga ) or ((( j nail clamp a now ) or ( j gram mass cu non ))))*.