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