Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung che co snippets" » "dung chet co snippets", "duong che co snippets", "dung cho co snippets", "dung cheo co snippets", "dung che do snippets", "dung he co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 che co snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung che co snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung che co snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung che co snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.