Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung trinh duy snippets" » "dung tinh duy snippets", "dong trinh duy snippets", "cong trinh duy snippets", "dung trinh duc snippets", "dung trinh dung snippets", "dung trinh thuy snippets"
"locating bug core snippets" » "locating bug code 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 code snippets") or ("dung trinh duy snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dung trinh duy snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung trinh duy snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung trinh duy snippets"))) or ("locating bug core snippets"))*.