Google modifications include tools that let people limit online searches to only serve up results from the past hour, or by specific date ranges.
Patrick Riley, Google engineer said, "this can be particularly helpful when you're looking for the freshest information. If you have an idea of when the information you're looking for may have been published to the web."
Bing's making ground
The Bing search engine Microsoft launched in May was designed to intuitively understand what people are seeking online and challenge Google.
The US software colossus described Bing as a "Decision Engine" aimed at online shoppers trying to make buying decisions, plan trips, research health matters, or find local businesses.
Bing posted a slight increase in its share of the US search market in August, the third month in a row of gains, according to online tracking firm comScore.
Bing increased its market share to 9.3 per cent in August from 8.9 per cent in July and 8.4 per cent in June, comScore said.
Google remained the overwhelming leader of the lucrative US search and advertising market in August with a 64.6 per cent market share, a dip of 0.1 per cent from July. Yahoo!'s share was unchanged at 19.3 per cent in August.