Perhaps you should try some spelling variations:
"statistical linear test a treaty" » "statistics linear test a treaty", "statistical literacy test a treaty", "statistical limit test a treaty", "statistical linear tests a treaty", "statistical linear text a treaty", "statistical linear texts a treaty", "statistical linear test _ treaty", "statistical linear test act treaty"
"practical nuclear test a treaty" » "practical nucleic test a treaty", "practice nuclear test a treaty", "fractional nuclear test a treaty", "practical nuclear test _ treaty", "practical nuclear test act treaty"
"tactical nuclear test a treaty" » "statistical nuclear test a treaty", "clinical nuclear test a treaty", "national nuclear test a treaty", "tactical nuclear test _ treaty", "tactical nuclear test act treaty"
"statistical life test a treaty" » "statistical laws test a treaty", "statistical literacy test a treaty", "statistical life tests a treaty", "statistical life testing a treaty", "statistical life test _ treaty", "statistical life test act treaty"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("practical nuclear test a treaty") OR ((("tactical nuclear test a treaty") OR ((("statistical linear test a treaty") OR ("statistical life test a treaty")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"practical nuclear test a treaty\") or (((\"tactical nuclear test a treaty\") or (((\"statistical linear test a treaty\") OR (\"statistical life test a treaty\"))))))".
• Removing quotes may allow a broader search: (( practical nuclear test a treaty ) or ((( tactical nuclear test a treaty ) or ((( statistical linear test a treaty ) OR ( statistical life test a treaty )))))).
• Adding a wildcard symbol may retrieve word variants: (("practical nuclear test a treaty") or ((("tactical nuclear test a treaty") or ((("statistical linear test a treaty") OR ("statistical life test a treaty"))))))*.