Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu diem cau snippets" » "khoa diem cau snippets", "thu dieu cau snippets", "thu dien cau snippets", "khu dieu can 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 diem cau 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 diem cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu diem cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu diem cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.