try someone back again

try back

To attempt to visit or contact some person or location following a failed previous attempt. A noun or pronoun can be used between "try" and "back," but only when referring to a phone call. Professor Smith has actually gone home for the day, but you can try back again tomorrow. No message, I'll just try him back later.
See also: back, try
Farlex Dictionary of Idioms.

try someone back (again)

tv. to call someone back on the telephone (again) later. I’ll try her back later.
See also: again, back, someone, try
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • try back
  • try someone back
  • make a play for
  • make a play for (someone or something)
  • make a play for somebody/something
  • make a play for someone
  • make a play for something
  • dialog
  • (you) can't win them all
  • can't win them all