Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghin ve che snippets" » "nhin ve che snippets", "nghi ve che snippets", "nghin le che snippets", "nghin va che snippets", "nghin ke che snippets", "nghin de che 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: (((("nghin ve che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghin ve che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghin ve che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghin ve che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.