Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban li he snippets" » "ban le he snippets", "ban i he snippets", "ban ii he snippets", "ban ly he snippets", "ban gi he snippets", "ban vi he 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: (((("ban li he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban li he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban li he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban li he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.