Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat lam cong snippets" » "mat lam dong snippets", "mat dam cong snippets", "mat lam nong snippets", "dat lam cong snippets", "mat la cong snippets", "mat lai cong 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 lam cong 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 lam cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat lam cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat lam cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.