Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc dat de snippets" » "duoc dat de snippets", "quoc dan de snippets", "quoc danh de snippets", "quoc vat de snippets", "quoc hat de snippets", "quoc dat dien 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: (((("quoc dat 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: (((("quoc dat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc dat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc dat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.