Rendering IBM Websphere portal search results using WCM search component
1) Create a search collection so that websphere portal search will be able to return results from WCM.Steps :-
1) Login to Websphere Portal Administration -> Search Administration -> Manage Search
2) Click Search collections -> New Collection.
3) Create a new collection with the following values
Search Service:
Default Portal Search Service Location:c:/IBM/WebSphere/AppServer/profiles/wp_profile/TestCollection Name:
TestCollectionDescription:
TestCollectionLanguage:
EnglishCategorizer:
noneSummarizer:
automatic and click OK. 
2) Define content source for the Search collection to search 1) click on the TestCollection and click New Content Source. and enter the following details content Source Name :- TestCollectionContentSource Collect documents linked from url :-https://<servername>:10029/seedlist/myserver?SeedlistId=web+content/Articles&Source=com.ibm.workplace.wcm.plugins.seedlist.retriever.WCMRetrieverFactory&Action=GetDocuments you can keep the rest of the fields with default values and click Create. Once you create the content source you should see it under the collection. now click on start crawlerfor the search collection to start collecting documents. 3) create an HTML form to perform the search and a Web Content Management search component to display the results Create a presentation template with the code below
<html>
<head>
</head>
<body TEXT="Black" BGCOLOR="White" BACKGROUND=""
LEFTMARGIN="0" RIGHTMARGIN="0" TOPMARGIN="0" BOTTOMMARGIN="0">
[Element context="current" type="content" key="Title"]<br>
[Element context="current" type="content" key="Body"]<br>
[Element context="current" type="content" key="Comp1"]<br>
[Element context="current" type="content" key="Comp2"]<br>
[Element context="current" type="content" key="Comp3"]<br>
</body>
</html>
and name it as SearchPresTemplateCreate an authoring template and name it SearchAuthTemplate with the below fields. 
New Create content with the authering template we created. name the form as Searchformin HTML field copy and paste the below code.
<form id="wcmsearchform" action='[PathCmpnt type="servlet"]/<libraryname>/<siteArea>/SearchForm' method="post"><table>
<tr><td>
<input type="text" name="search_query"/>
</td></tr>
<tr><td align="right">
<input type="submit" value="Search"/>
</td></tr>
</table>
</form>
** Replace the Libraryname and site area with your library and site area names. now click New->component-> Search and enter the following details as shown below pictureName:- searchComponentdisplaytitle:- search ComponentsearchSercice:- default portal search serviceSearch Collection :- TestCollection and save the component 
Now click the comp1 and select the component you just created and save it . Preview the content and search. 