Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat dam cao snippets" » "mat dan cao snippets", "hat dam cao snippets", "man dam cao snippets", "mat dam bao snippets", "mat nam cao snippets", "mat dam rao 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 dam cao 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 dam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat dam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.