issue vs problem

issue

noun
  • Any question or situation to be resolved 

  • Income derived from fines levied by a court or law-enforcement officer; the fines themselves. 

  • A point of law or fact in dispute or question in a legal action presented for resolution by the court. 

  • The action or an instance of a company selling bonds, stock, or other securities. 

  • Any financial instrument issued by a company. 

  • The production or distribution of something for general use. 

  • A psychological or emotional difficulty, (now informal, figurative and usually euphemistic) any problem or concern considered as a vague and intractable difficulty. 

  • Offspring: one's natural child or children. 

  • The outflow of a bodily fluid, particularly (now rare) in abnormal amounts. 

  • The entire set of something; all of something. 

  • The distribution of something (particularly rations or standardized provisions) to someone or some group. 

  • The entire set of some item printed and disseminated during a certain period, particularly (publishing) a single printing of a particular edition of a work when contrasted with other print runs. 

  • The action or an instance of sending something out 

  • A small incision, tear, or artificial ulcer, used to drain fluid and usually held open with a pea or other small object. 

  • The means or opportunity by which something flows or comes out 

  • Anything in dispute, an area of disagreement whose resolution is being debated or decided. 

  • A single edition of a newspaper or other periodical publication. 

  • The loan of a book etc. from a library to a patron; all such loans by a given library during a given period. 

  • Progeny: all one's lineal descendants. 

verb
  • To rush out, to sally forth. 

  • To deliver for use. 

  • To deliver by authority. 

  • To flow out, to proceed from, to come out or from. 

  • To extend into, to open onto. 

  • To send out; to put into circulation. 

  • To turn out in a certain way, to result in. 

  • To come to a point in fact or law on which the parties join issue. 

problem

noun
  • A difficulty that has to be resolved or dealt with. 

  • A puzzling circumstance. 

  • A set of moves required to complete a climb. 

  • A question to be answered, schoolwork exercise. 

  • Objection. 

  • Difficulty in accepting or understanding or refusal to accept or understand. 

adj
  • Causing a problem; problematic; troublesome. 

  • Difficult to train or guide; unruly. 

How often have the words issue and problem occurred in a corpus of books? (source: Google Ngram Viewer )