Perhaps you should try some spelling variations:
"american psychological association" » "american psychological adaptation", "american psychological consultation", "american psychological evaluation", "design psychological association"
"american psychology association" » "american psychological association's", "american psychology section", "american psychology application", "empirical psychology association"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"american psychological association\") OR (\"american psychology association\"))".
• Removing quotes may allow a broader search: (( american psychological association ) OR ( american psychology association )).
• Adding a wildcard symbol may retrieve word variants: (("american psychological association") OR ("american psychology association"))*.