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