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