When developing your search strategy, it is helpful to brainstorm variations or synonyms of the key concepts you're researching. For example, if you are researching hospice care, you might try different combinations of the following search terms:
"hospice care" OR "palliative care" OR "geriatric care"
"assisted living" OR "nursing home"
When researching Late Adulthood, you might choose specific ailments, such as: dementia or concepts associated with later adulthood, like bereavement, "aging in place", medicare/"social security", etc.
While Social Work Abstracts and Social Services Abstracts are always best bets for finding social work literature, consider searching the following databases as well.