Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban vi chi snippets" » "ban voi chi snippets", "ban va chi snippets", "ban ve chi snippets", "ban vi thi snippets", "ban di chi 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 vi chi 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 vi chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban vi chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban vi chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.