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