Perhaps you should try some spelling variations:
"using java java slippery" » "using data java slippery", "using java java slippers"
"van dung ra snippets" » "van dong ra snippets", "xay dung ra snippets", "tin dung ra snippets", "van duong ra snippets", "van dung va snippets", "van dung ha snippets", "van dung ra 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: (((("using java java slippery") or ("van dung ra snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java slippery") OR ("van dung ra snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java java slippery ) or ( van dung ra snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java slippery") or ("van dung ra snippets"))) or ("locating bug code snippets"))*.