Perhaps you should try some spelling variations:
"dao van code slippers" » "dao van de slippers", "dao van hoe slippers", "dao van cong slippers", "dang van code slippers"
"using 3 code snippets" » "using 3d code snippets", "using a code snippets", "using _ code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using 3 code snippets") or ("dao van code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using 3 code snippets") OR ("dao van code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using 3 code snippets ) or ( dao van code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using 3 code snippets") or ("dao van code slippers"))) or ("locating bug code snippets"))*.