Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi cong hon snippets" » "noi cong hon snippets", "moi cong hon snippets", "tai cong hon snippets", "voi cong hoan snippets", "voi cong hoa snippets", "voi cong lon 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: (((("voi cong hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi cong hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi cong hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi cong hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.