Perhaps you should try some spelling variations:
information about » information age, information a
tracking decision » taking decision, teaching decision, stacking decision
about tracking » about tracing, about teaching, about taking
data testing » data creating, data fitting, a testing
data openg » data open, data peng
data pet » data peter, data petri, data part

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

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