1) Searching for engineering & scientific literature only? On the search page look for Limits and make sure only this box is checked: Science Citation Index Expanded (SCI-EXPANDED) --1900-present.
2) Consider limiting to a timeframe if you get more than 100 articles. For example, 2000-2014 (remember some journals publish early).
3) Be sure to register and set up an account. This lets you save searches, save results, see your search history, etc. so you don't have to reinvent them the next time you search. You can also save to EndNote allowing automatic formation of your bibliographies! This saves you time!
4) In a hurry? Click on "abstract" for a quick summary of the article. Click on "detailed record" to see all information, abstract, funding, etc.
5) Looking for citation history? Use the "Cited Reference Search" tab to see who an author cited and who is citing them.
6) Set up alerts to keep abreast of new research in your field of interest.
6) Use Author Search to do fast searches on a researcher.
Learn about UKnowlege and depositing your research in the UK digital archive.
DO NOT REINVENT THE WHEEL!
Save yourself a lot of time by doing some initial research. If you are in a university find out if there is a research repository (i.e. UKnowledge) and see what has already been researched and published.
Check with your advisor or any other experts (director of research) who may know of previous un-published or additionally published research. Find an engineering or science librarian and ask for their assistance in finding external and as well as internal literature.
If you are at a company, find out if they have a digital archive of research or even a print archive that has a database you can search. Find out who did previous research on the topic - check with your colleagues, supervisors, other researchers. Is there a corporate library and librarian? Ask for their assistance. Are laboratory notebooks available once you identify previous researchers? Are there patents? All this background will help you. Do not spin reinventing the wheel!