Travelo theme is translation ready. You can change/translate those text using language file.
Please check http://soaptheme.net/document/travelo-wp/#translation
Or you can use translate plugin such as loco, etc.
I would like to thank you for your good job you are doing , i have purchased the theme , i want to change a text o the search bar but i cant find the file , please check out the attachment image .
etc... thank you in advance