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