Talvez deva tentar algumas variações de ortografia:
combining using » combining single (Expandir a Pesquisa), combining living (Expandir a Pesquisa), combined using (Expandir a Pesquisa)
coombs colin » combs colin (Expandir a Pesquisa), coombs robin (Expandir a Pesquisa), coombs kevin (Expandir a Pesquisa)
nino carlos » cano carlos (Expandir a Pesquisa), bacino carlos (Expandir a Pesquisa), semino carlos (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
using ngoc » using ngs (Expandir a Pesquisa), sang ngoc (Expandir a Pesquisa), using nacc (Expandir a Pesquisa)
15 method » 135 method (Expandir a Pesquisa), 15 methods (Expandir a Pesquisa), 05 method (Expandir a Pesquisa)
nacl nino » nacl nano (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa)
m coombs » m coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
colin _ » colin a (Expandir a Pesquisa), colin d (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 m coombs colin _ ) or ((( 15 method combining using ngoc ) or ( 0.9 nacl nino carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m coombs colin _ ) OR ((( 15 method combining using ngoc ) OR ( 0.9 nacl nino carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m coombs colin _ ) or ((( 15 method combining using ngoc ) or ( 0.9 nacl nino carlos nara ))))*.