Perhaps you should try some spelling variations:
occasional supplement » educational supplement, occasional punishment
occasional retirement » personal retirement, additional retirement, occasional punishment
additional supplement » additional settlement, nutritional supplement, educational supplement

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: some ((((occasional supplement) OR (occasional retirement))) OR (additional supplement)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "some ((((occasional supplement) OR (occasional retirement))) or (additional supplement))".
• Adding a wildcard symbol may retrieve word variants: some ((((occasional supplement) OR (occasional retirement))) or (additional supplement))*.