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

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