1. Before share to facebook, you can check debug by using facebook tool here:
2. When i switch to parent theme and try to search Cairo tour, it automatic display well.
3. unluckily, theme does not have order by option for advance search. We will check and update in future.
4. I searched your tour in Cairo and duration display well in filter sidebar.
5. The filter work with AND method. Please follow my image to change to OR.