While  column numbers on Sort must be specified with 1 for first column in line (value 0 has a special meaning) and the end column number specifies the last column in line included on sort by columns, the column numbers on Find must be specified with 0 as first column in line and the end column number specifies the first column not included anymore on find. That is of course confusing, but cannot be corrected anymore without loosing downwards compatibility of scripts/macros using column based sort or find.

So you have to run this column based find with the values 0 and 2 to find the searched string only in first two columns of the lines.

I use myself nearly always regular expression searches for such tasks and only rarely a column based find which is an alternative on being familiar with regular expressions.