Perhaps you should try some spelling variations:
"function spaces a tools" » "function systems a tools", "function spaces _ tools", "function spaces hs tools", "function spacex va tools", "function spaces a tool"
"function spaces fp tool" » "function systems fp tool", "function spaces _ tool", "function spaces hs tool"
"fusion system using tools" » "diffusion systems using tools", "function systems using tools"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("fusion system using tools") or ((("function spaces a tools") or ("function spaces fp tool"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("fusion system using tools") OR ((("function spaces a tools") OR ("function spaces fp tool")))).
• Removing quotes may allow a broader search: (( fusion system using tools ) or ((( function spaces a tools ) or ( function spaces fp tool )))).
• Adding a wildcard symbol may retrieve word variants: (("fusion system using tools") or ((("function spaces a tools") or ("function spaces fp tool"))))*.