Perhaps you should try some spelling variations:
"amateur mechanic association" » "amateur semantic association", "amateur genetic association", "amateur economic association", "motor mechanic association"
"amateur pacific association" » "amateur academic 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: "((\"amateur pacific association\") OR (\"amateur mechanic association\"))".
• Removing quotes may allow a broader search: (( amateur pacific association ) OR ( amateur mechanic association )).
• Adding a wildcard symbol may retrieve word variants: (("amateur pacific association") OR ("amateur mechanic association"))*.