i try to answer it. しょうがない means: you want to do sth, but because of some reasons, you cannot do it. 木村さんは今どこにいるのか分からないので、連絡しょうがない means: you want to connect with him, but you don't know where he is, so you are not able to connect with him 質問の意味が分からなくて、答えようがなかった means: you want to answer the question, but you don't know the meaning of the question, so you are not able to anwer it.