Since there are no spaces in the text you should be able to search for that term exactly as shown (assuming you have Boolean expression specified).
Containing Text: BGM++227+1234567890+9+NA
If you had spaces then you would need quotes:
Containing Text: "BGM ++ 227+1234567890+9+NA"
If you want to ensure that your text has no 'special' characters and will be treated literally use the Plain text expression type: