Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong duy ke snippets" » "cong quy ke snippets", "cong duc ke snippets", "cong dung ke snippets", "cong duy de snippets", "cong duy khoe snippets", "cong duy kien 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 duy ke 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 duy ke snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong duy ke snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong duy ke snippets"))) or ("locating bug code snippets"))*.