Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi van cuc snippets" » "vi van cuc snippets", "voi can cuc snippets", "doi van cuc snippets", "voi van duc snippets", "voi van luc snippets", "voi van cu 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 van cuc 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 van cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi van cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.