Omaha Poker is similar to Texas hold'em and the only difference is the fact that in Ohama, each player receives four cards dealt face down, (instead of two as for Texas hold’em), and five cards are dealt face up on the table.
In the game of Ohama Poker, bluffs are rare due to the wide range of possible combinations, as opposed to Texas hold'em.
The best thing is to start with a strong hand, for example, two pairs followed by a pair at the flop (when the first cards are played). A sequence of four cards in a row (i.e. 10, J, Q, K) are not a good starting hand since you are forced to use two cards, with low chances of getting a straight or a full. Nonetheless, experience can turn out useful as nobody can predict which cards will come out and you may happen to win an apparently losing hand and vice - versa.
A variant of Omaha is Omaha Hi-Lo where the pot is spitted into two sub-pots – a High and a Low pot. For a player to qualify for low, he must play 8,7,6,5,4 or lower. Only a pair counts but aces count both for the low and the high hand.
In high-low Omaha, the initial cards are of utmost importance. A good strategy for the low hand consists in playing an ace, a two or an ace, a three with low additional cards inferior to 9 as a support, while it is better to play cards higher than 9 for the high hand.
A good strategy for both Omaha and Omaha hi-lo is to avoid being predictable and try to vary the game, for example, by making a raise even though you don't have a very good starting hand.