If Condition in Keyword Query Language (SharePoint 2013 Search Results)

Hi All,

Can we have an "If" condition in Query text box in SharePoint 2013 Search results page. For example, i want to hide all list items whose status is "HideItem" from appearing in search results?

I am trying this: {?{searchTerms} (contentclass:STS_ListItem -ListItemStatus:"HideItem")}

But, this hides all items like aspx pages, pdf's, docs and displays only list items. 

Similarly, hide pages of some name like: AllItems.aspx, ViewDetails.aspx, AllAssets.aspx 

{?{searchTerms} (contentclass:STS_ListItem_850 -filename:"AllItems.aspx")} 

Any help would be great. Thanks in advance.