Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc cho do snippets" » "hoc cao do snippets", "hoc pho do snippets", "hoc co do snippets", "hoc cho dao snippets", "hoc cho doi snippets", "hoc cho ro 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 cho do 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 cho do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc cho do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cho do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.