how to use multiple filters in alicloud.yaml

I try to do multiple conditions of filters but fails, 
Example: i have 4servers, desired output is to match only 2servers
```
a-server
b-server
c-server
d-server
```

only one filter can be used , for example
```
filters:
  InstanceName: a-*
```
fail example  below, using "or"
```
filters:
  InstanceName: a-*|b-*
```


any example would be appreciate
thanks