Tips to help your search and research, this should work on most search engines:

Be specific, if you are looking for information on the movie titanic dvd, then type: movie titanic dvd not just computer titanic or movie dvd, because you will get more specific results to your search and less unrelated information.
Use the + to add for better results, for example: +movie +titanic +dvd will result in finding pages with all three words in them first. Another example: +computer +laptop +xp
Use the - to subtract for better results, for example: dolls -ceramic -paper will find pages with dolls, but not ceramic or paper. Another example: windows -me -xp (not me or xp).
If you want results with words used together as you put them, then try quotation marks - for example: "ty beanie baby" will find pages that include the words in the order you specified first, instead of just having all the words somewhere in the results. Another example: "windows xp home edition"
You can try a combination like: "ocean painting" -ship -beach or something like that, Another example: "usb mouse" -wireless (you get the idea, even though my examples are probably not as good as the ones you can think up.)

These are general ideas that sometimes help, good luck and happy searching, researching!