Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dien cac hon snippets" » "vien cac hon snippets", "dien cuc hon snippets", "dien sach hon snippets", "dien cac hop snippets", "dien cac mon snippets", "dien cac don 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: (((("dien cac hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dien cac hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dien cac hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dien cac hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.