vba code or UDF to get training data for every worker depending on Activx combobox

Hello everybody,
Could you help me in my question,please?
Question:
-"Data" sheet contains training data for workers
-I created formulas in other sheets to get data for every worker but it sometimes gives wrong results like in "Hossam" sheet
-I need a vba code or UDF to get training data for every worker depending on combobox in other sheets
please find the attachment