Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
complex trinh » complex thin (Expandir a Pesquisa), complex trial (Expandir a Pesquisa), complex trans (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
trinh ngoc » trinh quoc (Expandir a Pesquisa), dinh ngoc (Expandir a Pesquisa), minh ngoc (Expandir a Pesquisa)
carlos noa » carlos nodal (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
nacl nano » nacl kno (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa)
icon new » ion new (Expandir a Pesquisa), iron new (Expandir a Pesquisa), bacon new (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 icon new ) OR ((( 5 methyl complex trinh ngoc ) OR ( 7.5 nacl nano carlos noa ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j _ combs icon new ) OR ((( 5 methyl complex trinh ngoc ) OR ( 7.5 nacl nano carlos noa ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs icon new ) OR ((( 5 methyl complex trinh ngoc ) OR ( 7.5 nacl nano carlos noa ))))*.