Talvez deva tentar algumas variações de ortografia:
caso4 carlos » caso carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), casal carlos (Expandir a Pesquisa)
complex tree » complex three (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex trace (Expandir a Pesquisa)
carlos joel » carlson joel (Expandir a Pesquisa), carlos jose (Expandir a Pesquisa), carlos joao (Expandir a Pesquisa)
comps john » copps john (Expandir a Pesquisa), combs john (Expandir a Pesquisa), camps johan (Expandir a Pesquisa)
nacl caso4 » nacl na2so4 (Expandir a Pesquisa)
5 several » _ several (Expandir a Pesquisa), a several (Expandir a Pesquisa), al several (Expandir a Pesquisa)
tree ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
john noh » john john (Expandir a Pesquisa), john nova (Expandir a Pesquisa), john nash (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
l comps » m comps (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 l comps john noh ) or ((( 5 several complex tree ngoc ) or ( 7.5 nacl caso4 carlos joel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps john noh ) OR ((( 5 several complex tree ngoc ) OR ( 7.5 nacl caso4 carlos joel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps john noh ) or ((( 5 several complex tree ngoc ) or ( 7.5 nacl caso4 carlos joel ))))*.