Perhaps you should try some spelling variations:
"pham duoc dat snippets" » "pham duc dat snippets", "phan duoc dat snippets", "pham thuoc dat snippets", "pham duoc bat snippets", "pham duoc dai snippets", "pham duoc dan snippets", "pham duoc dat 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 duoc dat 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 duoc dat snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham duoc dat snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham duoc dat snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.