도 means 'also' or 'even' 하고 means 'and', but it is only used verbally, not in writen Korean. 과/와 can be used as 'and' but it is only used between nouns.(ex: 별과 달, 너와 나) 랑 has the same meaning as 과/와, but it sounds feminine or childish. So, men or adults hardly use this word. You can say 그리고 for any case where English word 'and' is used. Hope this helps. Cheers~