Talvez deva tentar algumas variações de ortografia:
comparacion del » comparacion de (Expandir a Pesquisa)
l comparacion » la comparacion (Expandir a Pesquisa), 2 comparacion (Expandir a Pesquisa), 4 comparacion (Expandir a Pesquisa)
complex trait » complex traits (Expandir a Pesquisa)
carlos newton » carlos nelson (Expandir a Pesquisa), santos newton (Expandir a Pesquisa)
tal complex » pal complex (Expandir a Pesquisa), al complex (Expandir a Pesquisa), metal complex (Expandir a Pesquisa)
trait ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa)
del new » del neo (Expandir a Pesquisa), model new (Expandir a Pesquisa), del nero (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (Expandir a Pesquisa)
5 tal » 5 tail (Expandir a Pesquisa), _ tal (Expandir a Pesquisa), e tal (Expandir a Pesquisa)
herly » herlyn (Expandir a Pesquisa), herdy (Expandir a Pesquisa), herry (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 comparacion del new ) or ((( 5 tal complex trait ngoc ) or ( 3 nacl herly carlos newton ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comparacion del new ) OR ((( 5 tal complex trait ngoc ) OR ( 3 nacl herly carlos newton )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comparacion del new ) or ((( 5 tal complex trait ngoc ) or ( 3 nacl herly carlos newton ))))*.