I met the same problem with you, Believe it or not,to choose the appropriate tool can help you save time and save unnecessary trouble,I use iStonsoft Data Recovery for Android to recover deleted text messages on the Samsung,this is a original tool,and also can help you recover photos,contacts,music.etc,Hope this helps!!!

visit this link:
http://www.istonsoft.com/mobile-phone/recover-deleted-text-messages-from-android-phone.html

theres a way 100%.... i deleted a lot of text messages recently due to them not being so plesant for my girlfriend to read. anyways i got a text from someone that there was no thread for and my girlfriend saw this and found all of my deleted messages. theyre nowhere for me to find yet she could quote the texts. mind you they werent plesant for her to read i wasnt cheating lol so we're still together now but she wont tell me how she did it. dont give up though theres a way,

There is also some thid pary app like: Vibosoft Android SMS+Contacts recovery program, works! You can give it a try!

http://www.vibosoft.com/mobile-phone/recover-deleted-text-messages-android-phone.html

I know what you are feeling now, when i lost all my sms on my newly-bought Samsung phone, i regarded it as a big disaster. To make up the default due to carelessness, i've tried many ways to solve the problem, and this one is the finnal winner:
http://www.ipubsoft.com/android/recover-deleted-text-messages-from-samsung-note-galaxy.html

It is very easy to lost or delete important text messages from Samsung Galaxy S4 by accident deletion, carelessly resetting, rooting and other reasons. Have you ever come across this terrible situation? Actually, these deleted messages can be restored from your Samsung GALAXY S4 (GT-I9500/GT-I9505) at ease.

Watch this Video:
http://www.youtube.com/watch?v=iqjMVJ4H3yk

When the deletion occurs, stop using your Samsung Intensity U450 for anything, like texting SMS, making calls, taking photos, etc. That's to say, stop creating any new data. With a Samsung Galaxy S text recovery tool, you'll get a great chance to retrieve deleted text messages on the Samsung Intensity U450.
More visit: http://www.recovery-android.com/recover-sms-from-samsung.html

You can retrieve old messages if you had previously made a back-up, but if you did not, there may still be several other ways for you to do it. Here are some links providing information on how to retrieve deleted messages. These may or may not work, but they're worth a try.

Link 1 Link 2 Link 3