WordNet (r) 3.0 (2006):

scrape along
    v 1: manage one's existence barely; "I guess I can squeeze by on
         this lousy salary" [syn: scrape along, scrape by,
         scratch along, squeak by, squeeze by, rub along]

Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "scrape along":
   clear, clear the hurdle, come along, come on, contrive, cope,
   cut the mustard, eke out, engineer, get along, get by, get on,
   go on, hack it, keep afloat, make ends meet, make it, make out,
   make the grade, manage, manage somehow, muddle through, negotiate,
   put over, put through, subsist, succeed in, survive, swing,
   swing the deal, worry along