Talvez deva tentar algumas variações de ortografia:
complex trauma » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
metil complex » metal complex (Expandir a Pesquisa), metals complex (Expandir a Pesquisa), met complex (Expandir a Pesquisa)
combs bacon » combs jacob (Expandir a Pesquisa), combs jason (Expandir a Pesquisa), com bacon (Expandir a Pesquisa)
trauma ngoc » trauma non (Expandir a Pesquisa), trauma now (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
carlos jama » carlos gama (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa), carlos rama (Expandir a Pesquisa)
bacon new » bacon's new (Expandir a Pesquisa), bacon neil (Expandir a Pesquisa), bacon e (Expandir a Pesquisa)
nacl nano » nacl kno (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa), nacl naoh (Expandir a Pesquisa)
5 metil » 5 methyl (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 bacon new ) OR ((( 5 metil complex trauma ngoc ) OR ( 3.5 nacl nano carlos jama ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j _ combs bacon new ) OR ((( 5 metil complex trauma ngoc ) OR ( 3.5 nacl nano carlos jama ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs bacon new ) OR ((( 5 metil complex trauma ngoc ) OR ( 3.5 nacl nano carlos jama ))))*.