Perhaps you should try some spelling variations:
"royal botanical garden, kew" » "royal botanical gardens, kew", "royal botanic gardens, kew", "local botanical garden, kew", "oral botanical garden, kew", "novel botanical garden, kew", "royal botanikal garden, kew"
"royal botanick garden, kew" » "royal botanikk garden, kew"
"royal botanic garden, kew" » "royal botanik garden, kew"

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: (("royal botanick garden, kew") OR ((("royal botanic garden, kew") OR ("royal botanical garden, kew")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"royal botanick garden, kew\") or (((\"royal botanic garden, kew\") OR (\"royal botanical garden, kew\"))))".
• Removing quotes may allow a broader search: (( royal botanick garden, kew ) or ((( royal botanic garden, kew ) OR ( royal botanical garden, kew )))).
• Adding a wildcard symbol may retrieve word variants: (("royal botanick garden, kew") or ((("royal botanic garden, kew") OR ("royal botanical garden, kew"))))*.