Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den moi con snippets" » "ben moi con snippets", "den coi con snippets", "den mot con snippets", "den moi cong snippets", "den moi co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("den moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den moi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den moi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den moi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.