Perhaps you should try some spelling variations:
"bounded theory" » "grounded theory", "blended theory", "bounded theories"
"founded theory" » "grounded theory", "grounded theory6", "founding theory"
"ground theory" » "grounded theory", "group theory", "groups theory"
"bounds theory" » "bands theory", "funds theory", "brands theory"

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: (((("ground theory") OR ((("bounded theory") OR ("bounds theory"))))) OR ("founded theory")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ground theory\") or (((\"bounded theory\") OR (\"bounds theory\"))))) or (\"founded theory\"))".
• Removing quotes may allow a broader search: (((( ground theory ) or ((( bounded theory ) OR ( bounds theory ))))) or ( founded theory )).
• Adding a wildcard symbol may retrieve word variants: (((("ground theory") or ((("bounded theory") OR ("bounds theory"))))) or ("founded theory"))*.