Thanks a lot Talha and TW Tones, I really appreciate your help here

I ended up using a field name "youtube_tile" (as per Talha advice) and 
using the below as a filter to get the "Tiddler link" from any other 
Tiddler:

''
<$list filter="[all[]field:youtube_title[The Quantum Experiment that Broke 
Reality | Space Time | PBS Digital Studios]]"/>
''
Or
''
<$set name="aa" value="""The Quantum Experiment that Broke Reality | Space 
Time | PBS Digital Studios""">
    <$list filter="[all[]field:youtube_title<aa>]">

    </$list>
</$set>
''

Thanks again
On Wednesday, September 16, 2020 at 2:06:03 AM UTC+2 TW Tones wrote:

> Mohamad,
>
> Talha has given you a great comprehensive answer. 
>
> I will just add that you can set the caption field on any tiddler and 
> lists can use this rather than the tiddler title. This allows icons and 
> special characters to be used, even the same name in more than one tiddler 
> (Why you would I am not sure).
>
> Just ask if you need more detail when you get to acting on what you have 
> learned here.
>
> Regards
> Tones
>
>
> On Wednesday, 16 September 2020 02:36:03 UTC+10, talha131 wrote:
>>
>> I asked a similar question in the past. Tones and other users shared 
>> their worthy suggestions. You can read them here
>>
>>    1. https://groups.google.com/forum/#!topic/tiddlywiki/iu-y7CVx6dg 
>>    2. https://groups.google.com/d/msg/TiddlyWiki/WWKlkMR-zfs/7nl_ARXqBwAJ 
>>    3. https://groups.google.com/d/msg/tiddlywiki/iu-y7CVx6dg/InmsYmYpAAAJ 
>>
>> Personally I would solve this problem this way
>>
>>    1. Always store the original title in a field like youtube-title (you 
>>    can use bar and other special characters 
>>    2. Store the url in a field like youtube-url 
>>    3. Set the tiddler title to a a valid string which reflects the 
>>    Youtube title but does not include special characters 
>>
>> Next I would use templates to display this information in every tiddler. 
>> If I have to search then I would use list field to search in the 
>> youtube-title field.
>>
>> Here you can see, I use template to display my source-url field
>>
>>

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