Ernest
I found what was happening. When I had one post set as ‘sticky’ then search for any phrase which happened to be first term/phrase in the given category would appear twice. I guess the first instance instead of the sticky post and the second as the result of the search.
I now removed the ‘sticky’ option from my post re-indexed the page and everything works
Hopefully it makes sense ?
Please let me know if you coud fix it, so I can use the sticky option
Regards
Jarek