Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham nhan dot snippets" » "pham nhan dot snippets", "hat nhan dot snippets", "cam nhan dot snippets", "ham nhan dat snippets", "ham nhay dot snippets", "ham nhan dong 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 nhan dot 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 nhan dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham nhan dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham nhan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.