Perhaps you should try some spelling variations:
"dong cach noi snippets" » "dong cac noi snippets", "dong bach noi snippets", "phong cach noi snippets", "dong cach thoi snippets", "dong hanh noi snippets", "dong anh noi snippets"
"dung java java snippets" » "dung va java 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 cach noi 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 cach noi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cach noi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cach noi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.