You have ticked "Use pattern matching". Thus you should try "*market*" with the "*" being the wild cards.
Consider where the object definitions reside. You have started on some group, which you blackened in your screenshot and you included the sub-groups. So it won't find any objects which only have occurrences in the models of that tree but not their definition.
Also "Find" won't find any definitions in subgroups where you might not have read access or if your method filter does not include the object type.
If you uncheck "use pattern matching", you have to type the exact string of the Name attribute. Even a trailing blank character in the object name can spoil a match.
You checked "Include subgroups", so subgroups will be searched all the way down the hierarchy of groups.
Are you positive, that the object "Market" exists in the group hierarchy where you start out from? Occurrences in models will not be found, only definitions. If the object comes from a library group elsewhere in your database, you have to search for it there - or search in the "Main group". Then you will find everything you have read permission for.