Perhaps you should try some spelling variations:
"maulana datta ur rehman" » "maulana data ur rehman", "maulana dutta ur rehman", "maulana patta ur rehman"
"maulana datta ur rahman" » "maulana data ur rahman", "maulana dutta ur rahman", "maulana patta ur rahman", "maulana datta ur raman"
"maulana natta ur rehman" » "maulana natto ur rehman", "maulana patta ur rehman"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("maulana datta ur rehman") OR ("maulana natta ur rehman"))) or ("maulana datta ur rahman"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("maulana datta ur rehman") OR ("maulana natta ur rehman"))) OR ("maulana datta ur rahman")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"maulana datta ur rehman\") OR (\"maulana natta ur rehman\"))) or (\"maulana datta ur rahman\"))".
• Removing quotes may allow a broader search: (((( maulana datta ur rehman ) OR ( maulana natta ur rehman ))) or ( maulana datta ur rahman )).
• Adding a wildcard symbol may retrieve word variants: (((("maulana datta ur rehman") OR ("maulana natta ur rehman"))) or ("maulana datta ur rahman"))*.