Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoai duc doc snippets" » "hoa duoc doc snippets", "hong duc doc snippets", "ho duc doc snippets", "hoai duc hoc snippets", "hoai duy doc snippets", "hoai duc ngoc 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: (((("hoai duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoai duc doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoai duc doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoai duc doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.