小题大做 a storm in a teacup; big deal; make a big fuss over a minor issue; make a fuss; make a great fuss about nothing; make a great fuss about trifles; make a mountain out of a molehill; make a mountain out of a nolehill molehill; to make a mountain of a mole hill
小题大作 make a fuss over a trifling matter; a fuss about a trifle; a great fuss about trifles; a fuss about nothing [a trifling matter]; a great disturbance about a trifle; a long harvest about [for] a little corn; a storm in a tea cup; a tempest in a teapot [barrel; bucket]; break [crush] a fly [a butterfly] on the wheel; great [much] cry and little wool; make a fun about [over] trifles; make a mountain out of a molehill; much ado about nothing; strain at a gnat; use a sledge-hammer on a gnat; too much of a little matter