Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"hoa van code snippets" » "hoa van de snippets", "hoa van hoe snippets", "hoa van cong snippets", "hoa dan code snippets", "hoang van code snippets", "hoa phan code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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

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