Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong nhan du snippets" » "cong nhat du snippets", "cong thanh du snippets", "cong san du snippets", "cong nhan su snippets", "cong han du snippets", "cong nhan xu 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 nhan du 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 nhan du snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong nhan du snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong nhan du snippets"))) or ("locating bug code snippets"))*.