The government expanded financing for small and medium-sized enterprises.
資金調達 is a broader term for raising funds, while 資金手当 specifically emphasizes the act of making funds available or arranging financing for a particular purpose.
Compound of 資金 (funds, capital) and 手当 (allowance, provision, arrangement). The exact historical derivation is uncertain, but the combination conveys the idea of arranging or providing funds.