Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"van hoang van snippets" » "van hoan van snippets", "quan hoang van snippets", "tran hoang van snippets", "van hang va snippets", "van hoang van slippers"
"using a java snippets" » "using _ java snippets", "using a java slippers"

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

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