Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan dua hon snippets" » "chay dua hon snippets", "phan dua hon snippets", "chan doan hon snippets", "chan cua hon snippets", "chan lua chon snippets", "chan 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: (((("chan 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: (((("chan dua hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan dua hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan dua hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.