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