"!property":"value" is not working as expected

[chuang-CE]

Here is the scenario: I was querying for resources of type "ceasn:Competency" with the properties of "ceasn:skillEmbodied", "ceasn:taskEmbodied", "ceasn:knowledgeEmbodied", and "ceasn:abilityEmbodied". I am trying to find that type of resource where those properties do not have a proper URI that contains "resources/ce-". If I run this query:

{
        "@type": {
            "search:value": [
                "ceasn:Competency"
		    ]
        },
        "search:termGroup": {
            "search:operator": "search:orTerms",
            "ceasn:skillEmbodied": "search:anyValue",
            "ceasn:taskEmbodied": "search:anyValue",
            "ceasn:knowledgeEmbodied": "search:anyValue",
            "ceasn:abilityEmbodied": "search:anyValue"
        }
}

I get 2994 results. And if i run this query:

{
        "@type": {
            "search:value": [
                "ceasn:Competency"
		    ]
        },
        "search:termGroup": {
            "search:operator": "search:orTerms",
            "ceasn:skillEmbodied": ["/resources/ce-"],
            "ceasn:taskEmbodied": ["/resources/ce-"],
            "ceasn:knowledgeEmbodied": ["/resources/ce-"],
            "ceasn:abilityEmbodied": ["/resources/ce-"]
        }
}

I get 2894 results. This means there are 100 results where there are invalid URIs in one of those properties for this type. But when I try to query those 100 resources with this query:

{
        "@type": {
            "search:value": [
                "ceasn:Competency"
		    ]
        },
        "search:termGroup": {
            "search:operator": "search:orTerms",
            "!ceasn:skillEmbodied": ["/resources/ce-"],
            "!ceasn:taskEmbodied": ["/resources/ce-"],
            "!ceasn:knowledgeEmbodied": ["/resources/ce-"],
            "!ceasn:abilityEmbodied": ["/resources/ce-"]
        }
}

The query takes a really long time and returns a total of 20,0000~ results.