if you require exact match on COL1 and COL2, then you can execute the following (assuming COL1 and COL2 are strings) :-
q=(COL1:"Good Boy" OR COL2:"Good Boy")
If you do not require exact match and the phrase should contain both "Good" and "Boy" in any order, then try the following (untested) :-
q=(COL1:*Good Boy* OR COL2: *Good Boy*)