Perhaps you should try some spelling variations:
student transfer » student transfers, student teacher
des transfers » net transfers, cash transfers, arms transfers
transfers 19 » transfers 1.2, transfers 1.3, transfers 1.4
transfer der » transfer fees, transfer _
bias index » bios index
3 student » 3 students, a student, 2 student
der macao » der macht, der makro
luis 3 » luis f, luis c, luis a

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( bias index des transfers 19 across ) or ( luis 3 student transfer der macao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( bias index des transfers 19 across ) OR ( luis 3 student transfer der macao )).
• Adding a wildcard symbol may retrieve word variants: (( bias index des transfers 19 across ) or ( luis 3 student transfer der macao ))*.