Basic search
The basic search will find results that include all the words you entered but not necessarily as a phrase
Example: exchanges energy emissions will find articles that contain all these words somewhere in the text

Using quote marks " "
Use quote marks to find results with exactly the words you type or exactly match a phrase
Example: "Bank of New York" or exact phrases in the text or headline such as "Eurotunnel debt restructuring"

Using AND / OR in your search
To match multiple phrases you can use AND/OR between phrases in quote marks
Example: "climate change" AND "hedge fund" will only find articles that contain both phrases
                  "climate change" OR "hedge fund" will find articles containing either climage change or hedge funds