Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc nghi ca snippets" » "duc nghia ca snippets", "duc nghe ca snippets", "tuc nghi ca snippets", "duc nghi cua snippets", "duc nghi va snippets", "duc nghia 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: (((("duc nghi 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: (((("duc nghi ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc nghi ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc nghi ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.