Perhaps you should try some spelling variations:
"using dinh cong snippets" » "using dinh code snippets", "using high cong snippets", "sung dinh cong snippets", "using mind cong snippets", "using dinh cuong snippets", "using dinh hong snippets", "using dinh long snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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 dinh cong snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using dinh cong snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using dinh cong snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using dinh cong snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.