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 trang » complex trans (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex trace (Expandir a Pesquisa)
nader carlos » hader carlos (Expandir a Pesquisa), nader charles (Expandir a Pesquisa), eder carlos (Expandir a Pesquisa)
carlos nova » carlos novoa (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos noa (Expandir a Pesquisa)
trang ngoc » tran ngoc (Expandir a Pesquisa), trung ngoc (Expandir a Pesquisa), rang ngoc (Expandir a Pesquisa)
nacl nader » nacl nabr (Expandir a Pesquisa), nacl under (Expandir a Pesquisa)
camps con » campos con (Expandir a Pesquisa), camps font (Expandir a Pesquisa), camps joan (Expandir a Pesquisa)
l camps » l campos (Expandir a Pesquisa), _ camps (Expandir a Pesquisa), e camps (Expandir a Pesquisa)
con net » con nee (Expandir a Pesquisa), non net (Expandir a Pesquisa), upon net (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 camps con net ) OR ((( 5 methyl complex trang ngoc ) OR ( 3.5 nacl nader carlos nova ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l camps con net ) OR ((( 5 methyl complex trang ngoc ) OR ( 3.5 nacl nader carlos nova ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l camps con net ) OR ((( 5 methyl complex trang ngoc ) OR ( 3.5 nacl nader carlos nova ))))*.