Talvez deva tentar algumas variações de ortografia:
complex than » complex trait (Expandir a Pesquisa)
compost wen » compost when (Expandir a Pesquisa), compost en (Expandir a Pesquisa), compost de (Expandir a Pesquisa)
carlos noel » carlos joel (Expandir a Pesquisa), carlos noe (Expandir a Pesquisa), carlos yoel (Expandir a Pesquisa)
yl complex » al complex (Expandir a Pesquisa), yl complexes (Expandir a Pesquisa), msl complex (Expandir a Pesquisa)
than ngoc » thanh ngoc (Expandir a Pesquisa), thuan ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa)
7.5 null » 34.5 null (Expandir a Pesquisa), 7.5 nacl (Expandir a Pesquisa), 7 null (Expandir a Pesquisa)
e carlos » de carlos (Expandir a Pesquisa)
null e » null _ (Expandir a Pesquisa), null a (Expandir a Pesquisa), null c (Expandir a Pesquisa)
5 yl » 2 yl (Expandir a Pesquisa), 1 yl (Expandir a Pesquisa), 4 yl (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 _ compost wen (nie or nine) ) or ((( 5 yl complex than ngoc ) or ( 7.5 null e carlos noel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ compost wen (nie OR nine) ) OR ((( 5 yl complex than ngoc ) OR ( 7.5 null e carlos noel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ compost wen (nie or nine) ) or ((( 5 yl complex than ngoc ) or ( 7.5 null e carlos noel ))))*.