Perhaps you should try some spelling variations:
"1989 iaaf world op" » "1989 imf world op" (Expand Search), "1989 iaaf wereld op" (Expand Search)
"1989 iaaf world we" » "1989 imf world we" (Expand Search), "1989 iaaf world wide" (Expand Search)
"1989 iaaf world _" » "1989 imf world _" (Expand Search)
"1989 imf wordt de" » "1989 imf world de" (Expand Search)
"1989 iaaf wordt er" » "1989 iaaf wordt een" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("1989 iaaf world op") OR ("1989 iaaf world we"))) OR ((((("1989 iaaf world _") OR ("1989 iaaf word je"))) OR ("1989 imf wordt de"))))) OR ((("1989 baas wordt op") OR ("1989 iaaf wordt er"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"1989 iaaf world op\") OR (\"1989 iaaf world we\"))) OR (((((\"1989 iaaf world _\") OR (\"1989 iaaf word je\"))) OR (\"1989 imf wordt de\"))))) OR (((\"1989 baas wordt op\") OR (\"1989 iaaf wordt er\"))))".
• Removing quotes may allow a broader search: (((((( 1989 iaaf world op ) OR ( 1989 iaaf world we ))) OR ((((( 1989 iaaf world _ ) OR ( 1989 iaaf word je ))) OR ( 1989 imf wordt de ))))) OR ((( 1989 baas wordt op ) OR ( 1989 iaaf wordt er )))).
• Adding a wildcard symbol may retrieve word variants: (((((("1989 iaaf world op") OR ("1989 iaaf world we"))) OR ((((("1989 iaaf world _") OR ("1989 iaaf word je"))) OR ("1989 imf wordt de"))))) OR ((("1989 baas wordt op") OR ("1989 iaaf wordt er"))))*.