```
 monthtext    <-----(column Name in varchar)

'2016july'            
'2016september'       
'2016december'        
'2016january'        
'2017february'       
'2017june'
'2017march'      

```

i want to sort it out by ascending or descending not in alphabetical order.
it should has to consider month and year for sorting

for ascending answer should be like 

```
'2016 january'
'2016 july'
'2016 saptember'
'2016 december'
'2017 february'
'2017 march'
'2017 june'

```