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