Perhaps you should try some spelling variations:
"dao van code snippets" » "dao van de snippets", "dao van hoe snippets", "dao van cong snippets", "dang van code snippets", "dao van code slippers"
"using 3 code snippets" » "using 3d code snippets", "using a code snippets", "using _ code snippets", "using 3 code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("using 3 code snippets") or ("dao van code snippets"))) 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 snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using 3 code snippets ) or ( dao van code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using 3 code snippets") or ("dao van code snippets"))) or ("locating bug code snippets"))*.