Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"van duong du snippets" » "van dong du snippets", "van dung du snippets", "van phong du snippets", "van duong duc snippets", "van duong di snippets"

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

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