Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu khu cong snippets" » "huu thu cong snippets", "huu thi cong snippets", "huu cuu cong snippets", "huu nhu cong snippets", "huu khi cong 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: (((("huu khu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu khu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu khu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu khu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.