Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi dan cach snippets" » "hoi dan cac snippets", "hoi dan canh snippets", "hoi nhan cach snippets", "hoa dan cach snippets", "hoc dan cach snippets", "hoi dap cach 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 dan cach 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 dan cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi dan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.