Thank you for contacting us about this.
Though your listing at 297 Canterbury is being shown twice in the My Listings section of your account and on your profile, however the listing is not being duplicated - that is, we are showing the same exact version of the listing twice. The listing is not being duplicated within our search results and I will contact our engineers to ask that they correct this display error.
However this is not the case for the listing at 6215 Hidden Creek. We do actually have two different versions of that listing within our search results:
If you can let us know which of these versions is the correct one that we should display, we can remove the other version. You can post that information here, contact me directly, or send the information to our Customer Service team via http://support.trulia.com/
Also, I was able to find your listing at 808 Tollis Pkwy when I performed a general search in Broadview Heights, OH. Please access the link below to review those search results and please let us know if you have any further questions.