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 world _" (Expand Search)
"1989 imf world op" » "1989 imf world _" (Expand Search)
"1989 imf world we" » "1989 imf world _" (Expand Search), "1989 imf word je" (Expand Search)
"1989 imf wordt op" » "1989 imf wordt de" (Expand Search)
"1989 baas wordt er" » "1989 baas wordt een" (Expand Search), "1989 baas wordt de" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((\"1989 iaaf world op\") OR (((\"1989 imf world op\") OR (((\"1989 imf world we\") OR (\"1989 imf world wide\"))))))) OR (\"1989 imf wordt op\"))) OR (\"1989 baas wordt er\"))) OR (\"1989 iaaf wereld op\"))~".
• Removing quotes may allow a broader search: (((((((( 1989 iaaf world op ) OR ((( 1989 imf world op ) OR ((( 1989 imf world we ) OR ( 1989 imf world wide ))))))) OR ( 1989 imf wordt op ))) OR ( 1989 baas wordt er ))) OR ( 1989 iaaf wereld op ))~.
• Adding a wildcard symbol may retrieve word variants: (((((((("1989 iaaf world op") OR ((("1989 imf world op") OR ((("1989 imf world we") OR ("1989 imf world wide"))))))) OR ("1989 imf wordt op"))) OR ("1989 baas wordt er"))) OR ("1989 iaaf wereld op"))*.