Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat chieu ke snippets" » "dat hieu ke snippets", "da chieu ke snippets", "dao chieu ke snippets", "dat hieu ky snippets", "dat hieu ve snippets", "dat hieu kem 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: (((("dat chieu ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat chieu ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat chieu ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat chieu ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.