Talvez deva tentar algumas variações de ortografia:
combs coplan » combs colin (Expandir a Pesquisa)
complex tric » complex tris (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex trial (Expandir a Pesquisa)
msl complex » cell complex (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
tric ngoc » truc ngoc (Expandir a Pesquisa), trinh ngoc (Expandir a Pesquisa), trieu ngoc (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)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 msl » _ msl (Expandir a Pesquisa), 5 mol (Expandir a Pesquisa), 5 msi (Expandir a Pesquisa)
negrao » negras (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 combs coplan neil ) or ((( 5 msl complex tric ngoc ) or ( 0.9 nacl kno carlos negrao ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs coplan neil ) OR ((( 5 msl complex tric ngoc ) OR ( 0.9 nacl kno carlos negrao )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs coplan neil ) or ((( 5 msl complex tric ngoc ) or ( 0.9 nacl kno carlos negrao ))))*.