Formula: copy to clipboard 
=IF(AND($B$1="",$B$2="",$B$3=""),INDEX(DATABASE!$D$2:$D$15,MATCH(0,COUNTIF(SUMMARY!$B$10:B10,DATABASE!$D$2:$D$15),0)),(IFERROR(INDEX(DATABASE!$D$2:$D$15,SMALL(IF((DATABASE!$C$2:$C$15=SUMMARY!$B$1)*(DATABASE!$E$2:$E$15=SUMMARY!$B$2)*(DATABASE!$A$2:$A$15=SUMMARY!$B$3),ROW(DATABASE!$C$2:$C$15)-ROW(DATABASE!$C$2)+1,""),ROW(1:1))),"")))


Paste this in Cell B11 and use Ctrl+Shift+Enter an drag it down

Punnam