也許你應該嘗試一些拼寫變化:
dhiren system » driven system (擴展搜索), chicken system (擴展搜索), chen system (擴展搜索)
prevent nerve » prevent neural (擴展搜索), prevent new (擴展搜索), seventh nerve (擴展搜索)
belval nerve » mental nerve (擴展搜索), dental nerve (擴展搜索), basal nerve (擴展搜索)
mehta dhiren » mehta hiren (擴展搜索), nehra dhiren (擴展搜索), mehta dhruven (擴展搜索)
nerve cyst » nerve cystic (擴展搜索), nerve cat (擴展搜索), nerve ct (擴展搜索)
system dcs » system dcus (擴展搜索), system sdcs (擴展搜索), system des (擴展搜索)
j prevent » j prevents (擴展搜索), _ prevent (擴展搜索), 3 prevent (擴展搜索)
case dis » case disc (擴展搜索), case did (擴展搜索), case di (擴展搜索)
j belval » j bell (擴展搜索), j bela (擴展搜索)
k mehta » a mehta (擴展搜索), _ mehta (擴展搜索)
cyst d » cyst _ (擴展搜索), cyst a (擴展搜索), cyst 2 (擴展搜索)

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 prevent nerve case dis ) or ((( j belval nerve cyst d ) or ( k mehta dhiren system dcs ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j prevent nerve case dis ) OR ((( j belval nerve cyst d ) OR ( k mehta dhiren system dcs )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j prevent nerve case dis ) or ((( j belval nerve cyst d ) or ( k mehta dhiren system dcs ))))*.