Perhaps you should try some spelling variations:
"mixed initial career" » "mixed initial care", "mixed initial charge", "mixed initial cover", "mixed martial career", "mixed initiative career"
"mixed initial case" » "mixed martial case", "mixed initiative case", "mixed initial phase", "mixed initial phases", "mixed initial crack"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"mixed initial career\") OR (\"mixed initial case\"))".
• Removing quotes may allow a broader search: (( mixed initial career ) OR ( mixed initial case )).
• Adding a wildcard symbol may retrieve word variants: (("mixed initial career") OR ("mixed initial case"))*.