Talvez deva tentar algumas variações de ortografia:
complex tetrex » complex trex (Expandir a Pesquisa), complex tetramer (Expandir a Pesquisa), complex tethered (Expandir a Pesquisa)
carlos lessa » carlos lima (Expandir a Pesquisa), carlos leon (Expandir a Pesquisa), carlos leal (Expandir a Pesquisa)
naoh carlos » naoh carbon (Expandir a Pesquisa), rath carlos (Expandir a Pesquisa), bloch carlos (Expandir a Pesquisa)
combs jain » combs jan (Expandir a Pesquisa), combs jason (Expandir a Pesquisa), combs john (Expandir a Pesquisa)
jain neetu » jain neena (Expandir a Pesquisa)
nacl naoh » nacl nabr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl na (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
ngoc » ngo (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 jain neetu ) or ((( 5 a complex tetrex ngoc ) or ( 3.5 nacl naoh carlos lessa ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs jain neetu ) OR ((( 5 a complex tetrex ngoc ) OR ( 3.5 nacl naoh carlos lessa )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs jain neetu ) or ((( 5 a complex tetrex ngoc ) or ( 3.5 nacl naoh carlos lessa ))))*.