Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"both hoa van snippets" » "boi hoa van snippets", "bach hoa van snippets", "bon hoa van snippets", "both hoa dan snippets", "both hoang van snippets", "both hoa phan snippets", "both hoa van slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("both hoa van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("both hoa van snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( both hoa van snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("both hoa van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.