Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong cac cua snippets" » "duong cac cua snippets", "dong bac cua snippets", "dung cac cua snippets", "dong cach cua snippets", "dong cac qua snippets", "dong ca cua 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 cac cua 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 cac cua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cac cua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cac cua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.