Try finding out what higher authorities may have created records about your ancestors.
A few examples:
- If you are researching in a specific municipality, check the records of the province to see what records they received from that municipality.
- If you find a court case, find out what the appellate court was to see if there was an appeal.
- If your ancestor worked for a school, find out who appointed the teachers. Until recent times, this typically was either the church or the municipality, not the school itself. The records of these authorities may include more information about your ancestors and job performance. In some cases, I even found their application letters.