These formulas should do what you want...

1) =IF(COUNTIF(A2,"*J*K*"),1,IF(COUNTIF(A2,"*K*J*"),2 ,""))

2) =IF(COUNTIF(A2,"*J*L*"),IF(COUNTIF(A2,"*K*"),"",1) ,"")

3) =IF(COUNTIF(A2,"*J*K*L*"),1,"")

4) =IF(COUNTIF(A2,"*J*"),IF(OR(COUNTIF(A2,"*K*"),COUN TIF(A2,"*L*")),"",1),"")