The page has a lot of space but subsection hyphenated. How to prevent this? enter image description here

I need to stretch that title.

closed as unclear what you're asking by Mensch, Paul Gaborit, user13907, ChrisS, Paul Gessler Apr 19 '16 at 1:57

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    I see the next line ending at the same level as the hyphen, so that's the line width. – egreg Nov 10 '15 at 10:16
  • Which version of LaTeX do you use? How wide is the text block? Which packages did you load that possibly affect the ability to hyphenate words in sectioning headers? – Mico Nov 10 '15 at 10:26
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    Add \raggedright to the formatting instructions applied to this specific heading. – Henri Menke Nov 10 '15 at 17:12