Form with a multi-value text box that will OR every input values

How to search multiple values in a text box, that should return results for all the input values. For Ex, i have a textbox named Num in dashboard, now i can search only 1 input value, How can i search multiple values, so that i can enter like 10,12,33 , which returns all 3 input results. The textbox should accept the values like (Num=10 OR Num=12 OR Num=33)