Full Text Search using Ecto and PostgreSQL performing bad on deployed version but run perfectly on local setup

The Task

So I am working in task to create a text search over a list of records in my PostgreSQL data base using ecto migrations.

The problem overview

The problem is that the full text search is working properly on my local machine but it does have severe problems when deployed to AWS.

for example if you search
Orang → you get many results among them “Orange juice”

but when you type more of the word it resets and has not results
Orange → Has 0 results

Setup
The schema I am trying to index and search on is

schema "ingredients" do
  field :name, :string
end

The migration was taken from this tutorial and it looks like this:

 def up do
    execute """
      ALTER TABLE ingredients
        ADD COLUMN searchable tsvector
        GENERATED ALWAYS AS (
          setweight(to_tsvector('english', coalesce(name, '')), 'A')
        ) STORED;
    """

    execute """
    CREATE INDEX ingredient_searchable_idx ON ingredients USING gin(searchable);
    """
  end

The search function looks like this:

 from(i in Ingredient,
      where:
        i.category_id not in ^secondary_ids and
          fragment(
            "searchable @@ websearch_to_tsquery(?)",
            ^search_term
          ),
      limit: 20,
      order_by: {
        :desc,
        fragment(
          "ts_rank_cd(searchable, websearch_to_tsquery(?), 4)",
          ^search_term
        )
      }
    )

Postgres Version online: 13.15

Since the whole search task is working properly in when I run it from my local setup I keep hitting my head against the whole but I can’t find what to pursue to get some answers on this any direction is greatly appreciated

Cheers,