Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"thuong thuc can snippets" » "thuong thuc chan snippets", "thuong thuc dan snippets", "thuong thuc van snippets", "truong thuc can snippets", "huong thuc can snippets", "thong thuc can 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: (((("thuong thuc can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuong thuc can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuong thuc can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuong thuc can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.