Perhaps you should try some spelling variations:
"continuity hypothesis" » "continuum hypothesis", "contact hypothesis", "utility hypothesis"
"continuous synthesis" » "continuum synthesis", "discontinuous synthesis", "continents synthesis"
"continues hypothesis" » "continuum hypothesis", "continuum hypotheses", "constituency hypothesis"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("continuous synthesis") OR ((("continues hypothesis") OR ("continuity hypothesis")))).
• Removing quotes may allow a broader search: (( continuous synthesis ) or ((( continues hypothesis ) or ( continuity hypothesis )))).
• Adding a wildcard symbol may retrieve word variants: (("continuous synthesis") or ((("continues hypothesis") or ("continuity hypothesis"))))*.