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