Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"vien thi phi snippets" » "vien tai phi snippets", "vien nhi phi snippets", "dien thi phi snippets", "vien chi phi snippets", "vien phi phi snippets", "vien thi phu snippets", "vien thi phi 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: (((("vien thi phi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vien thi phi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vien thi phi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vien thi phi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.