text: Investigate is to carry out a systematic or formal inquiry to discover and examine the facts of an incident, allegation etc. so as to establish the truth. A detective tries to discover truth means he is investigating and is not some of the best result from. Search for is intended to find out the often-hidden truth about something. Search for is again a part of investigation and is not some of the best result from. Find Facts is to determine the facts relevant to decide a controversy. Find facts is a type in investigation and is not some of the best result from.