Talvez deva tentar algumas variações de ortografia:
chiral complex » chiral complexes (Expandir a Pesquisa), chemical complex (Expandir a Pesquisa), central complex (Expandir a Pesquisa)
complex trait » complex traits (Expandir a Pesquisa)
combs collin » combs colin (Expandir a Pesquisa), mccombs rollin (Expandir a Pesquisa), jacobs collin (Expandir a Pesquisa)
collin neil » collins neil (Expandir a Pesquisa), colin neil (Expandir a Pesquisa), collier neil (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
kcl carlos » kuhl carlos (Expandir a Pesquisa), gil carlos (Expandir a Pesquisa), l carlos (Expandir a Pesquisa)
5 chiral » 5 chirally (Expandir a Pesquisa), dy chiral (Expandir a Pesquisa)
trait co » trait can (Expandir a Pesquisa), trait _ (Expandir a Pesquisa), trait a (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (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 collin neil ) or ((( 5 chiral complex trait co ) or ( 7.5 nacl kcl carlos noel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs collin neil ) OR ((( 5 chiral complex trait co ) OR ( 7.5 nacl kcl carlos noel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs collin neil ) or ((( 5 chiral complex trait co ) or ( 7.5 nacl kcl carlos noel ))))*.