I want to request you please suggest me any dua for my sister marriage proposal. People come to see her but nothing good happens. My parents are old and very worried about her. She is not doing any job. People normally demand job. What do we do?

Write with rose and saffron water on her dress she uses regularly-while you are on wodou:
(من كل شيء خلقنا زوجين لعلكم تذكرون: اللهم بحقّ قولك هذا، وبحقّ محمّد صلى الله عليه وآله أن ترزق هذه المرأة زوجاً موافقاً غير مخالف بحقّ محمّد وآله الطاهرين).