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