Perhaps you should try some spelling variations:
"male students information sources" » "male student information sources", "male students innovation sources", "male students invocation sources", "male students information resources", "male students information services", "male students information security", "female students information sources"
"palm dis information series" » "palm dis information services", "palm dis informatics series", "palm dis information service", "palm mis information series", "palm aids information series", "palm des informations series", "palma das information series", "palm oil information series", "palm os information series"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("male students information sources") or ("palm dis information series"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("male students information sources") OR ("palm dis information series"))*.
• Removing quotes may allow a broader search: (( male students information sources ) or ( palm dis information series ))*.