Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu cong chi snippets" » "thu cong chi snippets", "thi cong chi snippets", "cuu cong chi snippets", "khu cong khi snippets", "khu cong cho snippets", "khu con chi 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 chi 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 chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu cong chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu cong chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.