Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data cau voi snippets" » "dat cau voi snippets", "da cau voi snippets", "danh cau voi snippets", "data cau hoi snippets", "data cau doi snippets", "data cau 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 voi 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 voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data cau voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data cau voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.