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