Perhaps you should try some spelling variations:
"dao hoang duc snippets" » "dao hoan duc snippets", "do hoang duc snippets", "vao hoang duc snippets", "dao hong duc snippets", "dao hoang duy snippets", "dao hoang du snippets", "dao hoang duc 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dao hoang duc snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao hoang duc snippets") OR ("python using sat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao hoang duc snippets ) or ( python using sat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao hoang duc snippets") or ("python using sat snippets"))) or ("locating bug code snippets"))*.