Perhaps you should try some spelling variations:
"bounded theories" » "grounded theories", "bounded queries", "grounded theorie"
"founded theory" » "grounded theory6", "founding theory", "coupled theory"
"bounded theory" » "blended theory", "grounded theory6", "boundary theory"
"bounds theory" » "bands theory", "funds theory", "brands theory"
"grounded theory" » "ground 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: (((("grounded theory") OR ("founded theory"))) OR ((((("bounded theory") OR ("bounded theories"))) OR ("bounds theory")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"grounded theory\") OR (\"founded theory\"))) or (((((\"bounded theory\") or (\"bounded theories\"))) or (\"bounds theory\"))))".
• Removing quotes may allow a broader search: (((( grounded theory ) OR ( founded theory ))) or ((((( bounded theory ) or ( bounded theories ))) or ( bounds theory )))).
• Adding a wildcard symbol may retrieve word variants: (((("grounded theory") OR ("founded theory"))) or ((((("bounded theory") or ("bounded theories"))) or ("bounds theory"))))*.