Perhaps you should try some spelling variations:
"sindicato independencia de la policia vasca." » "sindicato independencia de la policia vasco." (Expand Search), "sindicato independencia de la politica vasca." (Expand Search), "sindicato independencia de la provincia vasca." (Expand Search), "sindicatos independencia de la policia vasca." (Expand Search), "sindical independencia de la policia vasca." (Expand Search)