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