Perhaps you should try some spelling variations:
"children's dignity and children's playmate" » "children's dignity and children's plays", "children's dignity and children's playhouses", "children's digital and children's playmate", "children's digest and children's playmate", "children's identity and children's playmate", "children's dignity and children's poetrymate"
"children's best and children's play" » "children best and children's play", "children's digest and children's play", "children's first and children's play", "children's best and children's poetry"

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 best and children's play") OR ("children's dignity and children's playmate"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"children's best and children's play\") OR (\"children's dignity and children's playmate\"))".
• Removing quotes may allow a broader search: (( children's best and children's play ) OR ( children's dignity and children's playmate )).
• Adding a wildcard symbol may retrieve word variants: (("children's best and children's play") OR ("children's dignity and children's playmate"))*.