Perhaps you should try some spelling variations:
"my big a green readings" » "my big a green reading", "my big a green seedlings", "my big a green meetings", "my big _ green readings", "my big o green readings", "my pig a green readings"
"my big hearted great trading" » "my big heart great trading", "my big started great trading", "my big health great trading", "my big hearted great trade", "my big eared great trading", "my big hearts great trading", "my kind hearted great trading"
"my big hemsted great trading" » "my big hemsted great trade"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("my big a green readings") OR ((("my big hearted great trading") OR ("my big hemsted great trading")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"my big a green readings\") or (((\"my big hearted great trading\") OR (\"my big hemsted great trading\"))))".
• Removing quotes may allow a broader search: (( my big a green readings ) or ((( my big hearted great trading ) OR ( my big hemsted great trading )))).
• Adding a wildcard symbol may retrieve word variants: (("my big a green readings") or ((("my big hearted great trading") OR ("my big hemsted great trading"))))*.