Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham cua can snippets" » "pham cua can snippets", "hai cua can snippets", "nam cua can snippets", "ham cua cac snippets", "ham cua ban snippets", "ham cua dan 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: (((("ham cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham cua can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham cua can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.