4. The computer-controlled method of claim 1 , wherein the step of determining said external score further comprises: constructing a first mode query for said at least one of said plurality of candidate phrases; receiving a second search result responsive to said second open-site network search using said first mode query; determining a query score for said at least one of said plurality of candidate phrases responsive to said second search result; and determining said external score for said at least one of said plurality of candidate phrases responsive to said query score and an adjustment coefficient.
4. The computer-controlled method of claim 1 , wherein the step of determining said external score further comprises: constructing a first mode query for said at least one of said plurality of candidate phrases; receiving a second search result responsive to said second open-site network search using said first mode query; determining a query score for said at least one of said plurality of candidate phrases responsive to said second search result; and determining said external score for said at least one of said plurality of candidate phrases responsive to said query score and an adjustment coefficient. 5. The computer-controlled method of claim 4 , wherein said adjustment coefficient is responsive to the presence of punctuation in each of said plurality of candidate phrases.