Talvez deva tentar algumas variações de ortografia:
tendon across » tendon cross (Expandir a Pesquisa), tension across (Expandir a Pesquisa), tendon necrosis (Expandir a Pesquisa)
nerve system » nervous system (Expandir a Pesquisa), drive system (Expandir a Pesquisa)
across wheat » across what (Expandir a Pesquisa), across threat (Expandir a Pesquisa), across great (Expandir a Pesquisa)
system dgps » system gps (Expandir a Pesquisa), system des (Expandir a Pesquisa), system dcs (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
i tendon » _ tendon (Expandir a Pesquisa), a tendon (Expandir a Pesquisa), d tendon (Expandir a Pesquisa)
wheat do » wheat d (Expandir a Pesquisa), wheat dh (Expandir a Pesquisa), wheat does (Expandir a Pesquisa)
a cent » a cento (Expandir a Pesquisa), a cena (Expandir a Pesquisa), a cenp (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: (( a cent nerve system dgps ) or ( i tendon across wheat do ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( a cent nerve system dgps ) OR ( i tendon across wheat do ))*.