Talvez deva tentar algumas variações de ortografia:
methods prepared » methods preferred (Expandir a Pesquisa), methods preparing (Expandir a Pesquisa), methods compared (Expandir a Pesquisa)
using naclo » using nacl (Expandir a Pesquisa), using nano (Expandir a Pesquisa), using nail (Expandir a Pesquisa)
carlos nora » carlos mora (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
combs dan » combs jan (Expandir a Pesquisa), combs juan (Expandir a Pesquisa), combs ryan (Expandir a Pesquisa)
5 methods » 5 methoxy (Expandir a Pesquisa)
lu carlos » oliu carlos (Expandir a Pesquisa), plou carlos (Expandir a Pesquisa), lu charles (Expandir a Pesquisa)
dan neal » doran neal (Expandir a Pesquisa), dan neural (Expandir a Pesquisa), ryan neal (Expandir a Pesquisa)
0.9 na » 0.93 na (Expandir a Pesquisa), 0.98 na (Expandir a Pesquisa), 0.9 la (Expandir a Pesquisa)
na lu » na li (Expandir a Pesquisa), ma lu (Expandir a Pesquisa), na yu (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 dan neal ) or ((( 5 methods prepared using naclo ) or ( 0.9 na lu carlos nora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs dan neal ) OR ((( 5 methods prepared using naclo ) OR ( 0.9 na lu carlos nora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs dan neal ) or ((( 5 methods prepared using naclo ) or ( 0.9 na lu carlos nora ))))*.