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