We'll search for every combination of “Karl” and your other names.
KA*RL*
KA*ARL
*KAR
KA*RLL
KA*RRL
KK*ARL
K*RRL
KR1*
KR7*
KA*LLL
KK*KRL
KK*RLL
KK*RRL
K*LLL
K*RLL
KR*RLL
KR*RRL
KK*LLL
KR*LLL