Hello brother.
For me in particular, Omaha is the poker that I like to play the most.
I think I play it very well, I have also won MTT in the specialty.
As for your question about how to bluff, I answer the same thing that our friends have told you. In Omaha bluffing is not impossible, but it is very difficult.
Keep in mind that in Omaha there are always big games. Even straight flushes I have seen several playing a single MTT.
Against a weak player the opportunity to bluff is to have a showdown in which the chances of getting the nuts are very high. Especially when you think that your opponent could have a straight, for example, and in the showdown there are possibilities of a flush, full house, even four of a kind or a straight flush.
You have to understand that you have to know the rule of possibilities almost perfectly.
There is a lot to think about on every Omaha flop, turn or river.
Always take all the time you need to get the best out of your hand.
Regarding the cards in your hand, you should not always go with any combination.
You have to keep in mind that there are many players who play Omaha almost like Hold em. In general many go all in with AA or KK in hand, and although they are good cards you will not necessarily get the nuts.
For me, for example, a couple of good combinations are these, for example.
I am only giving you examples of
hands to play with many possibilities on the flop and subsequent streets.
I do not mean that these hands are always winners, but what I mean is that you try to play hands with many mathematical chances.
Well bro, try to be pretty clear as to what Omaha is.
I hope it helps you.
A hug and success