Lucene searches on 2 field values as single

Question

Lucene document has field a with content hello and a with content world. If i'll search "hello world"~2 it will be founded =(. How can I fix it?
FastVectorHighlighter will highlight it like <b>helloworld</b> (without any space) (anyway it shouldn't highlight it)

Answer 1

a seems to be an multivalued field.
Have you changed the positionincrementgap to a higher value ? The default value position increment gap is 0.
This will prevent the scenario.