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