Talvez deva tentar algumas variações de ortografia:
compared boron » coated boron (Expandir a Pesquisa), combined boron (Expandir a Pesquisa), colored boron (Expandir a Pesquisa)
nacl compared » al compared (Expandir a Pesquisa), panel compared (Expandir a Pesquisa), gel compared (Expandir a Pesquisa)
boron ngoc » horn ngoc (Expandir a Pesquisa)
tail clamp » tail clip (Expandir a Pesquisa), coil clamp (Expandir a Pesquisa)
gram cal » gram scale (Expandir a Pesquisa), gram oral (Expandir a Pesquisa), gram l (Expandir a Pesquisa)
j nacl » _ nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa), a nacl (Expandir a Pesquisa)
j tail » a tail (Expandir a Pesquisa), 3 tail (Expandir a Pesquisa), 1 tail (Expandir a Pesquisa)
j gram » j gray (Expandir a Pesquisa), j gran (Expandir a Pesquisa), j graf (Expandir a Pesquisa)
cal ma » cal na (Expandir a Pesquisa)
ma nan » ya nan (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 compared boron ngoc ) or ((( j tail clamp _ noh ) or ( j gram cal ma nan ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j nacl compared boron ngoc ) OR ((( j tail clamp _ noh ) OR ( j gram cal ma nan )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j nacl compared boron ngoc ) or ((( j tail clamp _ noh ) or ( j gram cal ma nan ))))*.