You may want to give a look to this workbook:
https://www.dropbox.com/s/g7jyqglhsllvld3/CercaCombinaz_V1-308.xlsm?dl=0
Instruction are the following:
-Insert in sheet LAVORO, in B2 and below the list of values. Max 30 values
-Insert in sheet LAVORO- A1 thempty it will be 0.001
-All value must be positive
-Insert in sheet LAVORO - A4 the "total" to be searched
-Start macro CercaCombo308 via the button marked AVVIA; a userform will be shown
---Optionally modify the "Time Out" (default = 1 minut)
---Press CERCA
Possible combinations will be shown fron column C on
You may get the status of the search using button Status, or stop the search using button Stop
A message will confirm end of search
Maximum 999 results (250 in XL2003) will be searched
At the end, if you select one of the X on row 1 then the corresponding addends in column B will be highlighted
Bye