Perhaps you should try some spelling variations:
"amotivational state" » "motivational states", "motivation state", "motivational strategy", "amotivational states", "amotivation state", "amotivational strategy"
"motivational scale" » "motivation scale", "motivational case", "motivational social"
"motivational state" » "motivational states", "motivation state", "motivational strategy"
"amotivation state" » "motivation state", "activation state", "activation states"

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: (("motivational scale") OR ((("motivational state") OR ((("amotivational state") OR ("amotivation state")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"motivational scale\") or (((\"motivational state\") or (((\"amotivational state\") OR (\"amotivation state\"))))))".
• Removing quotes may allow a broader search: (( motivational scale ) or ((( motivational state ) or ((( amotivational state ) OR ( amotivation state )))))).
• Adding a wildcard symbol may retrieve word variants: (("motivational scale") or ((("motivational state") or ((("amotivational state") OR ("amotivation state"))))))*.