Perhaps you should try some spelling variations:
"1989 imf wereld op" » "1989 imf wereld _" (Expand Search)
"1989 imf wereld en" » "1989 imf wereld van" (Expand Search), "1989 imf wereld _" (Expand Search)
"1989 iaaf world op" » "1989 iaaf wordt op" (Expand Search)
"1989 imf world op" » "1989 imf wordt op" (Expand Search)
"1989 iaaf world we" » "1989 iaaf word je" (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 wide"))))) OR ((((("1989 imf world op") OR ("1989 imf world _"))) OR ((("1989 imf wereld op") OR ("1989 imf wereld en"))))))~.
• 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 wide\"))))) OR (((((\"1989 imf world op\") OR (\"1989 imf world _\"))) OR (((\"1989 imf wereld op\") OR (\"1989 imf wereld en\"))))))".
• Removing quotes may allow a broader search: (((( 1989 iaaf world op ) OR ((( 1989 iaaf world we ) OR ( 1989 iaaf world wide ))))) OR ((((( 1989 imf world op ) OR ( 1989 imf world _ ))) OR ((( 1989 imf wereld op ) OR ( 1989 imf wereld en )))))).
• Adding a wildcard symbol may retrieve word variants: (((("1989 iaaf world op") OR ((("1989 iaaf world we") OR ("1989 iaaf world wide"))))) OR ((((("1989 imf world op") OR ("1989 imf world _"))) OR ((("1989 imf wereld op") OR ("1989 imf wereld en"))))))*.