Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban don chat snippets" » "ban doc chat snippets", "ban cong chat snippets", "ban dinh chat snippets", "ban dan chat snippets", "ban do chat snippets", "ban den chat 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 don chat 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 don chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban don chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban don chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.