Perhaps you should try some spelling variations:
"hoai duoc dan snippets" » "hoa duoc dan snippets", "hoai duc dan snippets", "hoai duong dan snippets", "hoai duoc ban snippets", "hoai duoc dai snippets", "hoai duoc dan slippers"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets", "python using sat 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: (((("hoai duoc dan snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoai duoc dan snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoai duoc dan snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoai duoc dan snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.