What does the phrase 'have yet to find' suggest about the investigation of an event?

The phrase 'have yet to find' indicates that the investigation is ongoing and that certain pieces of information or conclusions have not been reached. This suggests there are unresolved aspects or uncertainties regarding the event in question. The use of 'yet' implies that the investigators are still working toward uncovering the necessary details or answers. This ongoing process highlights the complexities involved in the investigation, where complete knowledge or resolution has not yet been achieved. Hence, the phrase directly conveys the idea that there are continuing uncertainties that need to be addressed as part of the examination of the event.