There a lot of combinations with in a lottery and yes, you don't win unless you don't try doing so. Lottery is just base on pure luck and it is always either you win or you lose. Though its always a higher chance of you losing but the thing is the family that won that lottery is very lucky to have that money. Well, Congrats to those that won that million euros.
This does not really work all the time and therefor I suggest you to stay away from lottery and the combination stuff and rather look at the crypto speculation and trading thing. The chances of making things happen in lottery even by applying this concept of combination might not always work for you need huge numbers of tickets/entries and that is not possible.
They say that the odds of winning a power lotto is billions and yes you need to buy lots of tickets to be able to increase your chances of winning . i think you can loose more than millions or even billions before you can win those big prizes so its not really worth it imho . id rather join crypto trading or investing or id rather play regular gambling because they are more winnable than a lottery .