Here's a breakdown:
* czego - means "what" (genitive case, used for asking about the object of the verb)
* ja - means "I"
* chcę - means "I want"
You can also use "co chcę" (pronounced "tso h-tsɛ"), which means "what I want" and is a bit more informal.
Here are some examples of how to use these phrases:
* "Czego ja chcę?" (What do I want?)
* "Nie wiem, czego ja chcę." (I don't know what I want.)
* "Powiedz mi, co chcę." (Tell me what I want.)
Remember, the most accurate translation will depend on the context of your sentence.