Spacing between bars for clustered column chart that used measures only in y axis.

Hi Anonymous 
You can't modify the space between the bars, because the graph doesn't have X-axis. it is jest a set of measures that you put there.
To resolve this issue you can create a measures table and use a dynamic measure to get a bar for every measure.
For example, in my data, I want to create a graph like yours with Chinese sales and total sales.
The first step is to create a table of wanted measures :

Then you can create a dynamic measure using switch

dynamic measure = SWITCH(SELECTEDVALUE('sales table'[sales type]), "chineese sales",[Chineese_sales],

                                        "total sales",[total_sales])

After you have a table and a dynamic measure you can use a graph in its natural way :

the pbix is attached