Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi nhat vo snippets" » "moi nhat vo snippets", "hoi nhap vo snippets", "do nhat vo snippets", "voi nhat ve snippets", "voi nhat so snippets", "voi nhat vu 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: (((("voi nhat vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi nhat vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi nhat vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi nhat vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.