BL11LU*
We'll search for every combination of “Blu” and your other names.
BL11U*
BL*LLU
BL*LUU
BL*UUU
BL*U*
B*LUU
B*UUU
*BLU
BB11LU*
BB11U*
BB*BLU
BB*LLU
BB*LUU
BB*UUU
B*BLU
B*LU*