Improve basic search and quick search to find multiple words present in different text fields in an issue.

Currently if we search for multiple words using basic search or quick search, it will return only the issues where those words are present in a single text field. If the words are present in different text fields, such issues are not returned. We should be able to search words from different text fields of an issue.

Example scenario

• Issue includes word text1 text2 in the description and text3 in the comments.

• In basic search, if you try searching text text1 text2, the issue is fetched since these two words are in same text field

• In basic search, if you try searching text text1 text3, the issue is not fetched since these two words are in different text fields (description and comment) of the issue
  
   
• If you use AND operator in Advanced search i.e. text ~ "text1" and text ~ "text3", it will fetch the issue.
  

  Suggestion

• Improve basic search and quick search to find words from different text fields in an issue.
• The JQL generated by the basic or quick search should automatically amend the search to text ~ "text1" AND text ~ "text3", instead of the user applying a workaround i.e switch to JQL and search text ~ "text1" AND text ~ "text3"