Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu phau con snippets" » "khu phu con snippets", "khoa phau con snippets", "khu nha con snippets", "khu phai con snippets", "khu phan cong snippets", "khu pham 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: (((("khu phau con 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 phau con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu phau con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu phau con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.