Potser podríeu intentar variants ortogràfiques:
"children's books and children's playgroups" » "children's books and children playground", "children's books and children's playhouses", "children's books and children's classrooms", "children books and children's playgroups"
"children's first and children's plays" » "children's digest and children's plays", "children's art and children's plays", "children's films and children's plays", "children's first and children's play"

Amplia la teva cerca a Tots els camps.

Pot obtenir més resultats si ajusta la seva cerca.

• Executant una cerca difusa por obtener resultaste amo pararles similares: (("children's first and children's plays") or ("children's books and children's playgroups"))~.
• Si vols fer servir operadors booleans, han d'estar en majúscules: (("children's first and children's plays") OR ("children's books and children's playgroups")).
• Eliminan les cometes pot apliar la cerca: (( children's first and children's plays ) or ( children's books and children's playgroups )).
• Afegint truncament pot recuperar més registres: (("children's first and children's plays") or ("children's books and children's playgroups"))*.