Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc gioi da snippets" » "hoc giai da snippets", "hoc nguoi da snippets", "hoc giao da snippets", "hoc gioi du snippets", "hoc gioi ha snippets", "hoc gioi va 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: (((("hoc gioi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc gioi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc gioi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc gioi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.