Talvez deva tentar algumas variações de ortografia:
trials comparing » trial comparing (Expandir a Pesquisa)
dental computed » dental computer (Expandir a Pesquisa), serial computed (Expandir a Pesquisa), dental composites (Expandir a Pesquisa)
comparing case » comparing cancer (Expandir a Pesquisa), compelling case (Expandir a Pesquisa), comparing climate (Expandir a Pesquisa)
nab compared » swab compared (Expandir a Pesquisa), b compared (Expandir a Pesquisa), tb compared (Expandir a Pesquisa)
compared law » compared a (Expandir a Pesquisa), compared _ (Expandir a Pesquisa), company law (Expandir a Pesquisa)
computed a » computed _ (Expandir a Pesquisa), computed x (Expandir a Pesquisa), computed via (Expandir a Pesquisa)
j trials » jj trials (Expandir a Pesquisa), j trial (Expandir a Pesquisa), j triana (Expandir a Pesquisa)
case now » cases now (Expandir a Pesquisa), case non (Expandir a Pesquisa), case new (Expandir a Pesquisa)
law non » law note (Expandir a Pesquisa), thaw non (Expandir a Pesquisa)
_ nab » _ nad (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: (( a dental computed a new ) or ((( j trials comparing case now ) or ( _ nab compared law non ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a dental computed a new ) OR ((( j trials comparing case now ) OR ( _ nab compared law non )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( a dental computed a new ) or ((( j trials comparing case now ) or ( _ nab compared law non ))))*.