Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bi tan hoc snippets" » "bi toan hoc snippets", "bi than hoc snippets", "bi van hoc snippets", "bui tan hoc snippets", "b tan hoc snippets", "bi tai hoc 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: (((("bi tan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bi tan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bi tan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bi tan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.