Perhaps you should try some spelling variations:
"cua nhan code snippets" » "cua nhan co snippets", "cua nhan con snippets", "ca nhan code snippets", "cua ngan code snippets", "cua nha code snippets", "cua nhan 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 ("cua nhan 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 ("cua nhan code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( cua nhan code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("cua nhan code snippets"))) or ("locating bug code snippets"))*.