# TermExpandParameter

When you have set Mode to `Index`, you can add the following parameters from the IDOL Server `TermExpand` action, to specify how it performs the expansion. Query Manipulation Server forwards these parameters to the IDOL Server data index.

- `Stemming`. Whether to return the list of terms in unstemmed form. By default, Query Manipulation Server sets `Stemming` to false.

- `Type`. The method to use to weight the term expansions. By default, Query Manipulation Server sets `Type` to DocOccs.

- `Expansion`. The method to use to expand the terms. By default, Query Manipulation Server sets `Type` to Wild.

For more details about these parameters, refer to the IDOL Server Reference.

You can also add any additional parameters that you configure as AllowedQueryParams.

Actions: | TypeAhead
Type: |
Default: |
Example: | `Stemming=false&Type=dococcs`
See Also: |

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