Talvez deva tentar algumas variações de ortografia:
company based » competency based (Expandir a Pesquisa)
holt company » cola company (Expandir a Pesquisa), coll company (Expandir a Pesquisa), post company (Expandir a Pesquisa)
nacl complex » nac56 complex (Expandir a Pesquisa), caml complex (Expandir a Pesquisa), cl complex (Expandir a Pesquisa)
all sommers » all comers (Expandir a Pesquisa), a sommers (Expandir a Pesquisa), l sommers (Expandir a Pesquisa)
sommers jan » sommer jan (Expandir a Pesquisa), somers jan (Expandir a Pesquisa), sommers dan (Expandir a Pesquisa)
jan newton » jean newton (Expandir a Pesquisa), john newton (Expandir a Pesquisa), chan newton (Expandir a Pesquisa)
under new » under non (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
j all » _ all (Expandir a Pesquisa), b all (Expandir a Pesquisa), j ali (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 all sommers jan newton ) or ((( 3 nacl complex under new ) or ( l holt company based non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j all sommers jan newton ) OR ((( 3 nacl complex under new ) OR ( l holt company based non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j all sommers jan newton ) or ((( 3 nacl complex under new ) or ( l holt company based non ))))*.