Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong qua da snippets" » "duong qua da snippets", "dong cua da snippets", "dong mua da snippets", "dong qua ca snippets", "dong qua di snippets", "dong qua va 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: (((("dong qua da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong qua da snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong qua da snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong qua da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.