10. The computer program of claim 9 , wherein the generating a word index further comprises: extracting words to be indexed from each document of the collection of documents; and generating the respective stemmed form of each extracted word.
10. The computer program of claim 9 , wherein the generating a word index further comprises: extracting words to be indexed from each document of the collection of documents; and generating the respective stemmed form of each extracted word. 11. The computer program of claim 10 , further comprising instructions for: building an enriched-term string from each respective stemmed form.