Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len cong con snippets" » "den cong con snippets", "le cong con snippets", "len con con snippets", "len cong cong snippets", "len cong co snippets", "len cong lon 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 cong 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: (((("len cong con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len cong con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len cong con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.