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