Perhaps you should try some spelling variations:
"luis c india's transport demand mao" » "luis c africa's transport demand mao", "luis c china's transport demand mao", "luis c india's transport demand may", "luis c india's transport demand a", "luis c india's transport demand gap", "luis _ india's transport demand mao", "luis 1 india's transport demand mao", "luis 2 india's transport demand mao", "luis f india's transport demand mao"
"luis e cash transfers tax cao" » "luis e cash transfer tax cao", "luis e cash transfers ai cao", "luis e cash transfers dau cao", "luis f cash transfers tax cao", "luis a cash transfers tax cao", "luis _ cash transfers tax cao", "luis 4 cash transfers tax cao"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("luis e cash transfers tax cao") or ("luis c india's transport demand mao"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("luis e cash transfers tax cao") OR ("luis c india's transport demand mao")).
• Removing quotes may allow a broader search: (( luis e cash transfers tax cao ) or ( luis c india's transport demand mao )).
• Adding a wildcard symbol may retrieve word variants: (("luis e cash transfers tax cao") or ("luis c india's transport demand mao"))*.