Perhaps you should try some spelling variations:
"tranquillizer gun" » "tranquilizer und", "tranquilizer 3", "tranquilizer 5"
"tranquilizern und" » "tranquilizer und", "tranquilizers _", "tranquilizers 1"
"tranquilizer 2.6" » "tranquilizer und", "tranquilize _", "tranquilizers _"
"tranquilizer iv" » "tranquilizer und", "tranquilize _", "tranquilizers _"

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: (((("tranquillizer gun") OR ("tranquilizer iv"))) OR ((("tranquilizer 2.6") OR ("tranquilizern und")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tranquillizer gun\") or (\"tranquilizer iv\"))) or (((\"tranquilizer 2.6\") OR (\"tranquilizern und\"))))".
• Removing quotes may allow a broader search: (((( tranquillizer gun ) or ( tranquilizer iv ))) or ((( tranquilizer 2.6 ) OR ( tranquilizern und )))).
• Adding a wildcard symbol may retrieve word variants: (((("tranquillizer gun") or ("tranquilizer iv"))) or ((("tranquilizer 2.6") OR ("tranquilizern und"))))*.