Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mach cao doi snippets" » "mac ca doi snippets", "sach cap doi snippets", "mach lac doi snippets", "mach cho doi snippets", "mach cau doi snippets", "mach cac 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: (((("mach cao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mach cao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mach cao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach cao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.