Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat da hoan snippets" » "mat dao hoan snippets", "mat ba hoan snippets", "mat da hoa snippets", "mat dan hoan snippets", "mat ma hoan snippets", "vat da hoan 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: (((("mat da hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat da hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat da hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat da hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.