searchAllForItemName method should search for Custom Name if available

[ghost]

We could still discuss if we want to add up a parameter on searchAllForItemName to override the default behavior of the method.

ie. If we implement automatic searching custom name if custom name is available, then we could add a parameter to force search the default name rather than custom name.

Tagging @Matrim-Cauthon and @SML-MeSo for your inputs on this one.

[ghost]

As per @SML-MeSo's suggestion, we would just fallback to using the actual name (getName), if the search keyword does not match with getCustomName. Assigning issue to me.