Locating language keys

I am starting the clean up on that site I upgraded to 7.1 and t there are broken language keys everywhere.   The first few I decided to tackle were on the member approval screen for approving profiles - when you are viewing one.  I think members see this view when they edit their profile also but since they are all over the place I guess I have to pick them off one by one.   Here are a few I copied from that screen.  

_Membership_current

_Membership_days

_ps_group_3_title

_ps_group_4_title

The problem is, when I go to the language module none of these keys show up.  I have tried some partial searches like "Membership" and a bunch of keys show up, but none of these.   I can't be the first person this has happened to.   What is the best approach for finding and fixing these?

It appears as if something may have gone wrong during one of the upgrades. But not the 7.1 upgrade.

Some of the keys you pointed out were added in dolphin 7.0.9 as per this topic.

http://www.boonex.com/forums/topic/Upgrading-7-0-8-7-0-9.htm#157778

But. If you cannot find the key in dolphin, then it is missing and the only thing you can do is add it. But that may prove to be difficult if you don't have another site you can look it up on to get the text fro the key.

Thanks Deano, would there be a way to get the sql for the keys for that upgrade?  

It's not really much of any use directly.

There is no query. The language updates are normally in the upgrade/files folder of the patch.

The file is lang_en.php

It can't be run directly. It's just a include file for the main upgrade script. But it does contain all of the keys. Contains new keys as well as changed keys.