How new seller's gig come in fiverr search result?


Dear friends & fiverr family, I want to share with you some of my experiences about my fiverr gig. I see fiverr gig search result is continuously changes. Sometimes i see my gig in search and it’s again disappear. I joined fiverr in nov 2015 & getting one or two orders daily but i think it is not sufficient for my livelihood, specially for my study. I always sit down 5-7 hours in front of my desk expecting orders but not happy. I see lots of seller in fiverr getting lots of order per day but why i can’t. This question now deeply thinking about the matter.
I need your suggestions, tips about fiverr success because i really want to become successful seller.