You can save yourself some time and frustration if you plan your search strategy before you start looking for articles. It's like having a shopping list before going to the grocery store. Of course you may be fuzzy on some of these items to begin with, and that's OK. You can refine your search strategy as you go.
You may also want to keep a record of your search strategy (and the decision making that went into it), because having a record of what, where, and how you searched can help you replicate your search later or make modifications to improve your results.
What's in a search strategy?
For more about all of these elements, look at the boxes below and in the blue tabs on the left.