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