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