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 "population", enclose the phrase in quotes.
Please refer to the following examples:

• Search for Adrar to find all series that contain Adrar.
• Search for Homme OR Population to find all series that contain either Homme or Population indicators.
• Search for Homme AND Population to find all series that contain both Homme and Population indicators.
• Search for (Homme OR Population) "population des ménages" to find all series that contain either Homme or Population indicators or the phrase "population des ménages".