Talvez debería tentar con algunhas variantes ortográficas:
"children's history and children's play" » "children history and children's play", "children's history and children's poetry"
"children's digest and children's plays" » "children's dignity and children's plays", "children's best and children's plays", "children's first and children's plays", "children's digest and children's poetrys"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("children's digest and children's plays") OR ("children's history and children's play"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"children's digest and children's plays\") OR (\"children's history and children's play\"))".
• Removing quotes may allow a broader search: (( children's digest and children's plays ) OR ( children's history and children's play )).
• Adding a wildcard symbol may retrieve word variants: (("children's digest and children's plays") OR ("children's history and children's play"))*.