Talvez deva tentar algumas variações de ortografia:
complex walking » complex working (Expandir a Pesquisa), complex lacking (Expandir a Pesquisa), complex making (Expandir a Pesquisa)
composting sin » composting using (Expandir a Pesquisa), composting bins (Expandir a Pesquisa), composting soil (Expandir a Pesquisa)
walking ngoc » walking age (Expandir a Pesquisa), walking boot (Expandir a Pesquisa)
tat complex » tata complex (Expandir a Pesquisa), stat complex (Expandir a Pesquisa), hat complex (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
e carlos » de carlos (Expandir a Pesquisa)
sin nee » sin neo (Expandir a Pesquisa), sun nee (Expandir a Pesquisa), win nee (Expandir a Pesquisa)
nacl e » nacl en (Expandir a Pesquisa), nacl _ (Expandir a Pesquisa), nacl a (Expandir a Pesquisa)
_ tat » _ tau (Expandir a Pesquisa), _ tax (Expandir a Pesquisa), 1 tat (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 _ composting sin nee ) OR ((( _ tat complex walking ngoc ) OR ( 7.5 nacl e carlos noel ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j _ composting sin nee ) OR ((( _ tat complex walking ngoc ) OR ( 7.5 nacl e carlos noel ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ composting sin nee ) OR ((( _ tat complex walking ngoc ) OR ( 7.5 nacl e carlos noel ))))*.