Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong hoa cach snippets" » "dong hoa cach snippets", "dong hoc cach snippets", "hang hoa cach snippets", "cong hoa cac snippets", "cong hoc cach snippets", "cong hoa sach 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: (((("cong hoa cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hoa cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hoa cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoa cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.