Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thay dua hon snippets" » "chay dua hon snippets", "thay doi hon snippets", "thi dua hon snippets", "thay cua hon snippets", "thay lua chon snippets", "thay dua khen 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: (((("thay dua hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thay dua hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thay dua hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thay dua hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.