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