Perhaps you should try some spelling variations:
"cua vu ban snippets" » "cua su ban snippets", "cua vi ban snippets", "cua cu ban snippets", "cua tu ban snippets", "cua va ban snippets", "cua vu ban 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", "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: (((("cua vu ban snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua vu ban snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua vu ban snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua vu ban snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.