Perhaps you should try some spelling variations:
"За советские наука" » "За советскии наука" (Expand Search), "За советское наука" (Expand Search)
"За советская науку" » "За советская науки" (Expand Search), "За советская науке" (Expand Search)
"За советскую наук" » "За советскии наук" (Expand Search), "За советское наук" (Expand Search), "За советском наук" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"За советские наука\") OR (\"За советская науку\"))) OR (\"За советскую наук\"))~".
• Removing quotes may allow a broader search: (((( За советские наука ) OR ( За советская науку ))) OR ( За советскую наук ))~.
• Adding a wildcard symbol may retrieve word variants: (((("За советские наука") OR ("За советская науку"))) OR ("За советскую наук"))*.