Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex task » complex than (Expandir a Pesquisa)
carlos nojek » carlos nunez (Expandir a Pesquisa), carlos nunes (Expandir a Pesquisa), carlos nejar (Expandir a Pesquisa)
knox carlos » knopf carlos (Expandir a Pesquisa), knox charles (Expandir a Pesquisa), knox carl (Expandir a Pesquisa)
hobbs john » hobbs jean (Expandir a Pesquisa)
john neetu » john reetu (Expandir a Pesquisa), john neena (Expandir a Pesquisa), jain neetu (Expandir a Pesquisa)
task ngoc » task non (Expandir a Pesquisa)
nacl knox » nacl kno (Expandir a Pesquisa), nacl mno (Expandir a Pesquisa)
l hobbs » j hobbs (Expandir a Pesquisa), _ hobbs (Expandir a Pesquisa), m hobbs (Expandir a Pesquisa)
5 metal » 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 l hobbs john neetu ) OR ((( 5 metal complex task ngoc ) OR ( 3.5 nacl knox carlos nojek ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l hobbs john neetu ) OR ((( 5 metal complex task ngoc ) OR ( 3.5 nacl knox carlos nojek ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l hobbs john neetu ) OR ((( 5 metal complex task ngoc ) OR ( 3.5 nacl knox carlos nojek ))))*.