Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi di cau snippets" » "khi dai cau snippets", "khi doi cau snippets", "khi de cau snippets", "khi da cau snippets", "khi diem cau 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: (((("khi di 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: (((("khi di cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi di cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi di cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.