Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung hat cheo snippets" » "dung chat cheo snippets", "dung nhat cheo snippets", "dung phat cheo snippets", "dung thuat cheo snippets", "dung nham cheo snippets", "dung nhat nheo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung hat cheo 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 hat cheo snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hat cheo snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hat cheo snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.