Search string may contain the logical operators AND and OR 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 "expenditure group", enclose the phrase in quotes. Please refer to the following examples:

• Search for Western Cape to find all series that contain Western Cape.
• Search for CPI OR Geographic indices to find all series that contain either CPI or Geographic indices.
• Search for CPI AND Geographic indices to find all series that contain both CPI and Geographic indices.
• Search for (CPI OR Geographic indices) "expenditure group" to find all series that contain either CPI or Geographic indices or the phrase "expenditure group".