If you didn't receive any offers on your task, you can edit your task with a higher price. Higher the budget, higher is the chance of getting offers.
Remember the more people that see your task, the more offers you’re likely to receive. You can increase the number of people that see your task by clicking on the share button and sharing it across your social networks.
Another factor which can increase your likelihood to receive offers is a well written task description. Be sure to be clear in your scope and budget, as this helps Genies know whether they have the skills and abilities to complete your task.