Character limit on a search string

I remembered an LG tv deal, but did not remember who was selling it.

Searching for "LG TV" would throw the error "You must include at least one positive keyword with 3 characters or more".

I believe the function that checks the users entered text should be limited to two or use a combination of word count + total sentence count.

I could not find the deal I was looking for on the first four pages of "LG television", but searching for "lg tv bing" was the third result, with the deal itself coming from dick smith.

I know it would only be helpful in rare cases but I do not believe it would adversely effect the search function.

Deal I was searching for: http://www.ozbargain.com.au/node/82397

Thanks :)