Perhaps you should try some spelling variations:
"1989 iaaf world op" » "1989 iaaf wereld op" (Expand Search), "1989 iaaf world _" (Expand Search)
"1989 imf world we" » "1989 imf world wide" (Expand Search), "1989 imf world _" (Expand Search), "1989 imf word je" (Expand Search)
"1989 iaaf wordt er" » "1989 iaaf wordt een" (Expand Search)
"1989 iaaf wereld _" » "1989 iaaf world _" (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 imf world we"))) OR ((("1989 baas wordt op") OR ((("1989 iaaf wordt er") OR ("1989 iaaf wordt de"))))))) OR ((("1989 iaaf wereld _") OR ("1989 iaaf wereld van"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"1989 iaaf world op\") OR (\"1989 imf world we\"))) OR (((\"1989 baas wordt op\") OR (((\"1989 iaaf wordt er\") OR (\"1989 iaaf wordt de\"))))))) OR (((\"1989 iaaf wereld _\") OR (\"1989 iaaf wereld van\"))))".
• Removing quotes may allow a broader search: (((((( 1989 iaaf world op ) OR ( 1989 imf world we ))) OR ((( 1989 baas wordt op ) OR ((( 1989 iaaf wordt er ) OR ( 1989 iaaf wordt de ))))))) OR ((( 1989 iaaf wereld _ ) OR ( 1989 iaaf wereld van )))).
• Adding a wildcard symbol may retrieve word variants: (((((("1989 iaaf world op") OR ("1989 imf world we"))) OR ((("1989 baas wordt op") OR ((("1989 iaaf wordt er") OR ("1989 iaaf wordt de"))))))) OR ((("1989 iaaf wereld _") OR ("1989 iaaf wereld van"))))*.