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