Talvez deva tentar algumas variações de ortografia:
complex thach » complex than (Expandir a Pesquisa), complex tac (Expandir a Pesquisa), complex trace (Expandir a Pesquisa)
neco complex » neck complex (Expandir a Pesquisa), recor complex (Expandir a Pesquisa), co complex (Expandir a Pesquisa)
colin nivel » colin nigel (Expandir a Pesquisa), con nivel (Expandir a Pesquisa), colin newell (Expandir a Pesquisa)
carlos nova » carlos novoa (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
thach ngoc » thanh ngoc (Expandir a Pesquisa), thai ngoc (Expandir a Pesquisa), khanh ngoc (Expandir a Pesquisa)
kno carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), pino carlos (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
nacl kno » nacl nano (Expandir a Pesquisa), nacl en (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa)
_ neco » _ necro (Expandir a Pesquisa), _ necto (Expandir a Pesquisa), _ neck (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 _ combs colin nivel ) or ((( _ neco complex thach ngoc ) or ( 0.9 nacl kno carlos nova ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs colin nivel ) OR ((( _ neco complex thach ngoc ) OR ( 0.9 nacl kno carlos nova )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs colin nivel ) or ((( _ neco complex thach ngoc ) or ( 0.9 nacl kno carlos nova ))))*.