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 "structure des exportations", enclose the phrase in quotes.
Please refer to the following examples:

• Search for Niamey to find all series that contain Niamey.
• Search for Homme or Femme to find all series that contain either Homme or Femme indicators.
• Search for Homme and Femme to find all series that contain both Homme and Femme indicators.
• Search for (Homme or Femme) "structure des exportations" to find all series that contain either Homme or Femme indicators or the phrase "structure des exportations".