How to search hyphenated words in PostgreSQL full text search?

I have to search for hyphenated words like 'good-morning', 'good-evening', etc. My query is: select id, ts_headline(content, to_tsquery('english','good-morning'), 'HighlightAll=true MaxFragments=100 FragmentDelimiter=$') from table where ts_content @@ to_tsquery('english','good-morning'); When executing this query I also get results of *'good'* and *'morning'* separately. But I want exactly matching words and fragments. (For ts_content I used the same default config english to create the tsvector.) How can I search such hyphenated words in PostgreSQL full text search?