Talvez deva tentar algumas variações de ortografia:
present nation » present relation (Expandir a Pesquisa), president national (Expandir a Pesquisa), present generation (Expandir a Pesquisa)
crest derived » host derived (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
derived c3a » derived c3 (Expandir a Pesquisa), derived ca (Expandir a Pesquisa), derived cd34 (Expandir a Pesquisa)
nation can » mutation can (Expandir a Pesquisa), duration can (Expandir a Pesquisa), ablation can (Expandir a Pesquisa)
_ present » _ presence (Expandir a Pesquisa)
can diet » can direct (Expandir a Pesquisa), than diet (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mehta (Expandir a Pesquisa), j mena (Expandir a Pesquisa)
j crest » _ crest (Expandir a Pesquisa), a crest (Expandir a Pesquisa), j crespo (Expandir a Pesquisa)
c3a dis » c3a des (Expandir a Pesquisa)
case de » case due (Expandir a Pesquisa), case d (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 crest derived c3a dis ) or ((( _ present nation can diet ) or ( j mental nerve case de ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j crest derived c3a dis ) OR ((( _ present nation can diet ) OR ( j mental nerve case de )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j crest derived c3a dis ) or ((( _ present nation can diet ) or ( j mental nerve case de ))))*.