`eos.getActions()` is actually a wrapper of `/history/get_actions` RPC API which is provided by the `history_api_plugin` of `nodeos`. For this API endpoint, `account_name` is the name of the account who signed and sent this transaction.

https://developers.eos.io/eosio-nodeos/reference#get_actions-1

In your case, you are recommended to utilize mongodb for query purposes. You can checkout the `mongo_db_plugin` for nodeos. (https://developers.eos.io/eosio-nodeos/docs/mongo_db_plugin)

With `mongo_db_plugin`, you can save all the action data into your mongodb instance and query anyway you like in mongodb. E.g. actions are saved in the `action_traces` mongo collection.

    db.action_traces.find({'act.account': 'newdexpocket', 'act.authorization.actor': 'newdexpocket'})

For better query performance, please add index for 'act.account' and 'act.authorization.actor'.

    db.action_traces.createIndexes([{'act.authorization.actor': 1}, {'act.account': 1}], {background: true})

Btw, `history_api_plugin` is deprecated since eosio v1.2.0 and may be removed in the future. You should consider starting your migration before it's too late.