Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban mach can snippets" » "ban sach can snippets", "ranh mach can snippets", "ban hanh can snippets", "ban mach cao snippets", "ban mach phan snippets", "ban mach tuan 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: (((("ban mach can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban mach can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban mach can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban mach can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.