Talvez debería tentar con algunhas variantes ortográficas:
"printing machine" » "printing machinery", "grinding machines", "mining machine"
"tuning machine" » "turning machine", "turning machines", "pruning machine"
"turing machines" » "using machines", "learning machines", "cutting machiness", "turing machinery"
"turing machine" » "using machine", "learning machine", "cutting machines"

Try widening your search to Todos os campos.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("turing machines") or ((((("tuning machine") or ("printing machine"))) or ("turing machine"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("turing machines") OR ((((("tuning machine") OR ("printing machine"))) OR ("turing machine")))).
• Removing quotes may allow a broader search: (( turing machines ) or ((((( tuning machine ) or ( printing machine ))) or ( turing machine )))).
• Adding a wildcard symbol may retrieve word variants: (("turing machines") or ((((("tuning machine") or ("printing machine"))) or ("turing machine"))))*.