The Republic of Venice didn't fight alone. In 1683, the Austrians beat the Ottoman army at the gates of Vienna. In 1684, a Holy League was formed on initiative of Pope Innocence XI, with the Holy Roman Empire, the Polish-Lithuanian commonwealth and Venice as the most notable members. In 1686, Russia joined the league as well. This alliance was the turning point of the advance of Ottoman power in Europe. While they were able to reconquer Morea in 1714, their rule over Greece was unstable which was the key factor for the successful Greek independence movement in the 19th century.

Source consulted for this answer: Heinrich Kretschmayr: Geschichte von Venedig, Vol. 3, Stuttgart 134 (Reprinted in 2012), p. 343-345.