Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khac hat de snippets" » "khac hau de snippets", "khuc hat de snippets", "hoc hat de snippets", "khac nhat de snippets", "khac vat de snippets", "khac dat de 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: (((("khac hat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khac hat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khac hat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khac hat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.