Perhaps you should try some spelling variations:
"pham ban dan snippets" » "pham banh dan snippets", "pham van dan snippets", "pha ban dan snippets", "pham ban hang snippets", "pham ban hanh snippets", "pham ban quan snippets", "pham ban dan 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: (((("pham ban dan snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham ban dan snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham ban dan snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham ban dan snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.