Talvez deva tentar algumas variações de ortografia:
cooper jason » cooper john (Expandir a Pesquisa), cooper alan (Expandir a Pesquisa), cooper james (Expandir a Pesquisa)
pal complex » al complex (Expandir a Pesquisa), apical complex (Expandir a Pesquisa), metal complex (Expandir a Pesquisa)
nabr carlos » jair carlos (Expandir a Pesquisa), mar carlos (Expandir a Pesquisa), aybar carlos (Expandir a Pesquisa)
carlos nava » carlos navarro (Expandir a Pesquisa), carlos eslava (Expandir a Pesquisa), carlos zavala (Expandir a Pesquisa)
jason boom » jason bloom (Expandir a Pesquisa), jason boo (Expandir a Pesquisa), jason boon (Expandir a Pesquisa)
than ngoc » thanh ngoc (Expandir a Pesquisa), thuan ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl naoh (Expandir a Pesquisa)
l cooper » _ cooper (Expandir a Pesquisa), i cooper (Expandir a Pesquisa), j cooper (Expandir a Pesquisa)
e pal » e paz (Expandir a Pesquisa), e pol (Expandir a Pesquisa), _ pal (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 cooper jason boom ) OR ((( e pal complex than ngoc ) OR ( 3.5 nacl nabr carlos nava ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l cooper jason boom ) OR ((( e pal complex than ngoc ) OR ( 3.5 nacl nabr carlos nava ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l cooper jason boom ) OR ((( e pal complex than ngoc ) OR ( 3.5 nacl nabr carlos nava ))))*.