Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi vu hong snippets" » "hoi vu cong snippets", "hoi vu thuong snippets", "hoi du phong snippets", "hoi va hong snippets", "hoi tu hong snippets", "hai vu hong 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: (((("hoi vu hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi vu hong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi vu hong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi vu hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.