Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len co chu snippets" » "len con chu snippets", "lien co chu snippets", "nen co chu snippets", "len cho chu snippets", "len cao chu snippets", "len co che 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: (((("len co chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len co chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len co chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len co chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.