You can change your settings to only display content if the social posts contain specific keywords.

For example, you could have a specific company hashtag which you add to your Tech related posts such as #Tech2019. Within this feature, you can choose to only display social posts which contain this hashtag.

To do this, after creating a saved search, click into your saved search and press 'Content Settings' and within the 'General' tab you see a text box where you can type the specific keywords you want to search. To include multiple keywords, simply separate them with a comma. Once you are happy with your keywords, save the content settings. Your search will now only feed through content which contains the keywords which you have inputted. 

Alternatively, you can use this feature to exclude content with specific keywords by going into the content settings and clicking on the 'Include' button which will switch to 'Exclude'.