Perhaps you should try some spelling variations:
"dung chung java snippets" » "dung cong java snippets", "dung trung java snippets", "truong chung java snippets"
"locating bug core snippets" » "locating bug code snippets"
"using c code snippets" » "using lc code snippets", "using a code snippets", "using _ code snippets", "using cfd 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 c code snippets") OR ("dung chung java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using c code snippets\") OR (\"dung chung java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using c code snippets ) OR ( dung chung java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") OR ("dung chung java snippets"))) OR ("locating bug core snippets"))*.