Perhaps you should try some spelling variations:
"18 summer olympics boycott" » "1 summer olympics boycott", "10 summer olympics boycott", "15 summer olympics boycott", "18 summer olympics boycotts"
"18 summer olympic boycott" » "1 summer olympic boycott", "10 summer olympic boycott", "15 summer olympic boycott", "18 summer olympic boycotts"

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: "((\"18 summer olympics boycott\") OR (\"18 summer olympic boycott\"))".
• Removing quotes may allow a broader search: (( 18 summer olympics boycott ) OR ( 18 summer olympic boycott )).
• Adding a wildcard symbol may retrieve word variants: (("18 summer olympics boycott") OR ("18 summer olympic boycott"))*.