Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau va hoan snippets" » "khau van hoan snippets", "khu va hoan snippets", "thau va hoan snippets", "khau va hoa snippets", "khau va hoat 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: (((("khau va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khau va hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau va hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.