Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hanh qua code snippets" » "thanh qua code snippets", "hanh sua code snippets", "hanh cua code snippets", "hanh qua cong snippets", "hanh qua co snippets", "hanh qua con 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: (((("dung java java snippets") OR ("hanh qua code snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung java java snippets\") OR (\"hanh qua code snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dung java java snippets ) OR ( hanh qua code snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") OR ("hanh qua code snippets"))) OR ("locating bug core snippets"))*.