In Power BI Connecter Connector the most of OData (Power query) operators are supported: $top, $skip, $select, $count, $search, $orderby, $filter.
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$skip - allows users to skip the number of not necessary items and show items collections without skipped ones. To check $skip parameter enter in your browser URL:
https://[instance name]/api/x_716979_powerbi_c/v1/powerbi_connector/[datasource_id]/[table_name]?$skip={N}, where N -is number of skipped rows
$count - return numbers of all items per table. To check $count parameter enter in your browser URL: https://[instance_name]/api/x_716979_powerbi_c/v1/powerbi_connector/[datasource_id]/[table_name]?$count=true
$search - allows users to return collection of items, searched by simple text:
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To check $search parameter enter in your browser URL:
https://ven05068.service-now.com/api/x_716979_powerbi_c/v1/powerbi_connector/[datasource_id]/[table_name]?$search={T},
where T - is Text or Numbers types, lower/upper cases are supported
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NOTE: $expand operator is not supported.