Perhaps you should try some spelling variations:
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"cac ky toan snippets" » "cac ke toan snippets", "cac ly toan snippets", "cac huy toan 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: (((("cac ky toan snippets") or ("python using raw snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac ky toan snippets") OR ("python using raw snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac ky toan snippets ) or ( python using raw snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac ky toan snippets") or ("python using raw snippets"))) or ("locating bug code snippets"))*.