Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"coc duc van snippets" » "hoc duc van snippets", "coc luc van snippets", "hoc duoc van snippets", "coc duc va snippets", "coc duc tan snippets", "coc duc manh snippets", "coc duc 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: (((("coc duc 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: (((("coc duc van snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( coc duc van snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("coc duc van snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.