Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long te cong snippets" » "long ve cong snippets", "long term cong snippets", "long tieu cong snippets", "long tai cong snippets", "long thi cong snippets", "long thu cong 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: (((("long te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long te cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long te cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.