1) Finding portfolios by names:
In My Portfolios tab, use the search engine located on the top of the left panel to type the name of the portfolio you are looking for.
2) Finding dashboards by dates:
In My Portfolios tab, use the search engine located on top of the left panel:
Type a date in the format: #YYYY to find all the portfolios created during a year, use #YYYYMM to find all the portfolios created on a specific month and #YYYYMMDD for all the portfolios from a date:
For example: type #2016 and only the portfolios created on that year will be shown.