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

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: (( continuity hypothesis ) OR ( ((continuous synthesis) OR (continuum synthesis)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( continuity hypothesis ) or ( ((continuous synthesis) OR (continuum synthesis)) ))".
• Adding a wildcard symbol may retrieve word variants: (( continuity hypothesis ) or ( ((continuous synthesis) OR (continuum synthesis)) ))*.