Searching via regular expressions

[JGM22]

I am trying to search on the word 'Extend'. I want to limit my search results where the word 'Extend' is the first word in the Item. Anyway to search and limit the results by using the first word ( ie: using regular expressions would be ^extend )?

I want the results as follows:
Extend blah blah <- I want this to show in the search results
Extend blah blah blah <- I want this to show in the search results
Blah Extend <- I want this excluded from the search results since extend is not the first word

Thank you,

JGM