Complex sentence: He feels disgruntled because he has been condemned by a financial bond which he signed with the government (in return for a tertiary education) to teach at a tiny school in Tiboonda--a remote fly-speck situated in the arid Australian outback.
Split into simpler sentences: He feels disgruntled because of the terms of a financial bond which he signed with the government in return for a tertiary education. The bond has caused him to be posted to a tiny school at Tiboonda--a remote fly-speck situated in the arid Australian outback.