<Leader>vv - Grep for the word under the cursor, match all occurences,
<Leader>vV - Grep for the word under the cursor, match whole word, like
<Leader>va - Like vv, but add to existing list
<Leader>vA - Like vV, but add to existing list
<Leader>vr - Perform a global search on the word under the cursor
and prompt for a pattern with which to replace it.
<Leader>vo - Select the files to search in and set grep options
<Leader>vy* - Invoke any option from the options explorer, where * is the
shortcut for that option.
e.g. <Leader>vyr - toggles recursion
<Leader>vyb - sets buffer grepping mode