Search note problem (can't find a note even with words from its title)

[jango-fx]

yes i find the search result also very uncoherent and unreliable

exact copy paste of the title is not found, substring is found:

1. 
2. 

string not found searching for two substrings:

1. 
2. 

different results for upper/lower case search terms, results both being lower case:

1. 
2.