Dear Anna, To get to the text input line press space with dots 1 3 on your bn/vn. One is limited to 255 characters of input text and usually it would have to be in computer braille, unless one is perhaps searching on a web braille page, but I'm not sure of this.
The easiest way to do a search on the google page, is as follows: I'm giving bt commands. Go to top of page with space with dots 123 and press the find command: space with or as the braille-and-speak users will no it better: chord f. Press f to search forward and enter the word search in computer braille. Press enter and when the search button is found, press dots 1 3 chord to get to the text input field and enter your search string. Then press enter to activate the search. Hth Riana
