Talvez deva tentar algumas variações de ortografia:
texture food » texture foods (Expandir a Pesquisa), textured food (Expandir a Pesquisa), textural food (Expandir a Pesquisa)
food studies » field studies (Expandir a Pesquisa)
seiner werke » seiler werner (Expandir a Pesquisa), sein werk (Expandir a Pesquisa), seiner reise (Expandir a Pesquisa)
un original » sin original (Expandir a Pesquisa), von original (Expandir a Pesquisa), full original (Expandir a Pesquisa)
original zu » original _ (Expandir a Pesquisa), original a (Expandir a Pesquisa), original ao (Expandir a Pesquisa)
studies un » studies up (Expandir a Pesquisa), studies us (Expandir a Pesquisa), studies upon (Expandir a Pesquisa)
zu seiner » zu einer (Expandir a Pesquisa), zu seinem (Expandir a Pesquisa), zu einem (Expandir a Pesquisa)
adamantan. » adamantane. (Expandir a Pesquisa), adamantyl. (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: adamantan. texture food studies un original zu seiner werke~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: adamantan. texture food studies un original zu seiner werke*.