Perhaps you should try some spelling variations:
"huy khoa code snippets" » "huy khoa cong snippets", "huy khoa co snippets", "huy khoa de snippets", "chua khoa code snippets", "cuu khoa code snippets", "hoc khoa code snippets", "huy khoa code slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("python using a snippets") or ("huy khoa code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("huy khoa code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( huy khoa code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("huy khoa code snippets"))) or ("locating bug code snippets"))*.