Talvez deva tentar algumas variações de ortografia:
complex task » complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
htt complex » hat complex (Expandir a Pesquisa), ttt complex (Expandir a Pesquisa), host complex (Expandir a Pesquisa)
nino carlos » cano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), semino carlos (Expandir a Pesquisa)
coli colic » coli colib (Expandir a Pesquisa), coli colicin (Expandir a Pesquisa), coli cyclic (Expandir a Pesquisa)
colic new » coli new (Expandir a Pesquisa)
nacl nino » nacl nano (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa)
task 1 » task _ (Expandir a Pesquisa), task a (Expandir a Pesquisa)
5 htt » 5 ht3 (Expandir a Pesquisa), 5 ht2 (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 e coli colic new ) OR ((( 5 htt complex task 1 ) OR ( 0.9 nacl nino carlos nejar ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j e coli colic new ) OR ((( 5 htt complex task 1 ) OR ( 0.9 nacl nino carlos nejar ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e coli colic new ) OR ((( 5 htt complex task 1 ) OR ( 0.9 nacl nino carlos nejar ))))*.