Perhaps you should try some spelling variations:
"За советскую наука" » "За советская наука" (Expand Search), "За советское наука" (Expand Search), "За советские наука" (Expand Search)
"За советскии науку" » "За советская науку" (Expand Search), "За советскии науки" (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 наука") OR ((("За советскии науку") OR ("За советскии наук"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"За советскую наука\") OR (((\"За советскии науку\") OR (\"За советскии наук\"))))".
• Removing quotes may allow a broader search: (( За советскую наука ) OR ((( За советскии науку ) OR ( За советскии наук )))).
• Adding a wildcard symbol may retrieve word variants: (("За советскую наука") OR ((("За советскии науку") OR ("За советскии наук"))))*.