[Solved] Need help with search multiple values from a text field

My greetings to all users of the MVD. Need help. I found an interesting hack on the forum to fill the textbox with values from the combobox when it is changed. I took it into the project and had problems with filtering by textbox. I searched the forum for options for solving this situation. Did not find any variant as a filling of the many-to-many database. I wouldn't like to change the project structure. In fact, I need to search by a combination of values, not one by one. The field in the database filled with values has a standard separator.