hi, the default search will not bring up all threads but only solved ones. also, putting in more search terms doesn't narrow down but widen a search (like a "OR" search parameter). these are known issues...

The Advanced Search (listed in Contributor Tools above) does better however it will show threads in support forum that has search terms somewhere in thread and not just subject.

https://support.mozilla.org/en-US/search/advanced

There is no way to find unsolved posts? Say you had a solution to a particular question?

You can use the Advanced search as posted above.

See also:

• https://support.mozilla.org/kb/using-advanced-search