Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat tang ca snippets" » "luan tang ca snippets", "suat tang ca snippets", "luat trong ca snippets", "luat tang cua snippets", "luat hang ca snippets", "luat tang ma 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: (((("luat tang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat tang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat tang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat tang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.