Talvez debería tentar con algunhas variantes ortográficas:
information requirements » nutrition requirements, irrigation requirements, information environments
requirements a » requirements _
a imprecision » _ imprecision, a precision, data imprecision
data creating » data cleaning
data learning » a learning
data testing » data fitting, a testing, data writing

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

• Performing a fuzzy search may retrieve terms with similar spellings: information requirements a imprecision ((((data testing) or (data creating))) or (data learning))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information requirements a imprecision ((((data testing) OR (data creating))) OR (data learning)).
• Adding a wildcard symbol may retrieve word variants: information requirements a imprecision ((((data testing) or (data creating))) or (data learning))*.