Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mach hoc te snippets" » "cach hoc te snippets", "dich hoc te snippets", "anh hoc te snippets", "mach hoc tu snippets", "mach hoc he 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 hoc te 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 hoc te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mach hoc te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach hoc te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.