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