Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"wei long va snippets" » "wei yulong va snippets", "wei liang va snippets", "hai long va snippets", "wei luong va snippets", "wei long van snippets", "wei blong va snippets", "wei long va 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: (((("wei long va snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wei long va snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wei long va snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wei long va snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.