Perhaps you should try some spelling variations:
population documentation » education documentation, population implementation, evaluation documentation
formation documentation » information documentation, education documentation, formation segmentation
methods decision » methods design, ethics decision, methods session
decision e » decision de, decision _, decision a
e libre » de libre, _ libre, e liburd

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((formation documentation) or (population documentation)) methods decision e libre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((formation documentation) OR (population documentation)) methods decision e libre.
• Adding a wildcard symbol may retrieve word variants: ((formation documentation) or (population documentation)) methods decision e libre*.