Cannot be shocked/frozen and other Synthesised belt implicits not searchable on official trade site

On the official trade website you cannot search for these synthesised belt implicits:

Cannot be Shocked
Cannot be Ignited
Cannot be Frozen
Bleeding cannot be inflicted on you
Cannot be Poisoned

You can however on poe.trade which seems odd as the official site is meant to be the site that has everything available.

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Novynn wrote:

Use these (implicit) stats with values of 100:

#% chance to Avoid being Shocked
#% chance to Avoid being Ignited
#% chance to Avoid being Frozen
#% chance to avoid Bleeding
#% chance to Avoid being Poisoned

Ah right, well I guess you can search for it but I have a feeling few people will know to do this and since I'm attempting to sell items with these implicits that doesn't seem very optimal.