Perhaps you should try some spelling variations:
"За советские наук" » "За советскии наук" (Expand Search), "За советское наук" (Expand Search)
"За советская науку" » "За советская науки" (Expand Search), "За советская науке" (Expand Search)
"За советскую наука" » "За советскии наука" (Expand Search), "За советское наука" (Expand Search), "За советском наука" (Expand Search), "За советскую науки" (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 наук\") OR (\"За советская науку\"))) OR (\"За советскую наука\"))~".
• Removing quotes may allow a broader search: (((( За советские наук ) OR ( За советская науку ))) OR ( За советскую наука ))~.
• Adding a wildcard symbol may retrieve word variants: (((("За советские наук") OR ("За советская науку"))) OR ("За советскую наука"))*.