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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("За советскую науки") OR ((("За советскии науку") OR ("За советскии наук"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"За советскую науки\") OR (((\"За советскии науку\") OR (\"За советскии наук\"))))*".
• Removing quotes may allow a broader search: (( За советскую науки ) OR ((( За советскии науку ) OR ( За советскии наук ))))*.