Sorry, but I am confused... what exactly are you talking about. It is not clear to me, what redeeming has to do with the search function and what you mean by redeeming from the game page?

Just to be clear, normally when redeeming is used here, it means you want to use a gift code going here: https://www.gog.com/redeem
And the search function is at the top navigation bar (see pic).

So what are you exactly trying to do?

I think he's probably talking about non-game-specific codes, such as what you get (or used to at least, I don't know how the store credit thing works) when you buy a regionally priced game that is more expensive than the US price. As far as I know, what you do with those codes (typically worth $5.99 or $9.99) is to add the game you want to your cart, then go to the checkout screen, on which there is a field for inputting those kinds of codes.

Exactly, thank you. The problem is i want a specific game, Imperialism II, but when I introduce the code it goes to page 1/27 of a list of games that the code works on (due to the price). Its not in the 1st ten pages and i cant seem to be able to get to the 11th, and many times it crashes before also.
Its not the 1st type of these codes that a i redeem (with Divinity Original Sin comes one of $5.99 and one of $9.99), but the first time it had a search so you did not have to manualy look for the game.

Did you try with another browser? It is possible that there's either a problem with the browser or an addon you are using, thus the disappearance of the search box.

I tried IE from windows (was using firefox) and same problem, although i got to page 12th. That problem maybe from my internet connection or something. Still cant see search function, maybe they just removed it or not yet inplemented in the new design. I guess i will pm a moderator. :s

The paginated UI has been complained about before: http://www.gog.com/forum/general/welcome_to_the_fresher_better_gogcom/post610

The non-loading bug seems to be a new discovery, though.