Frequently by means of limited search you don't find out any user. In that case it is possible to expand conditions, for example point out date of birth and activity field.
If you search for somebody with whom you studied together - specify school (Higher Educational Institution) and year of its graduation.
While searching for army colleagues specify a military unit and year of military service.
The more search criterions you have entered, the more probability, that you will find needed person.
If you don't want to waste time for nothing, be very attentive.
