Search string may contain the logical operators AND, OR and XOR and the operands () and "". AND searches for both words or phrases, while OR searches for one or the other. If the search string uses AND and OR at the same time, the AND operation takes priority, unless you enclose the OR operation in parentheses, as in (A or B) and C. To find an exact phrase, such as "Inflation rates", enclose the phrase in quotes.
Please refer to the following examples:

• Search for Sennar to find all series that contain Sennar.
• Search for Manufacture or equipment to find all series that contain either Manufacture or equipment indicators.
• Search for Manufacture and equipment to find all series that contain both Manufacture and equipment indicators.
• Search for Manufacture xor equipment to find all series that contain either "Manufacture" of "Equipment".
• Search for (poverty and hunger) "population" to find all series that contain either poverty and hunger indicators or the phrase "population".