Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mach so moi snippets" » "mach do moi snippets", "mach so mo snippets", "sach so moi snippets", "cach so moi snippets", "manh so moi 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 so moi 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 so moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mach so moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach so moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.