Perhaps you should try some spelling variations:
22survey methodology » surveys methodology, surveying methodology, discovery methodology
survey methodology » surface methodology, study methodology
curve methodology » core methodology, care methodology, surveys methodology

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: %((((22survey methodology) OR (survey methodology))) OR (curve methodology))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22survey methodology) OR (survey methodology))) or (curve methodology))%22".
• Adding a wildcard symbol may retrieve word variants: %((((22survey methodology) OR (survey methodology))) or (curve methodology))%22*.