Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi doan cau snippets" » "thai doan cau snippets", "thi hoan cau snippets", "thi loan cau snippets", "thi toan cau snippets", "thi doan dau snippets", "thi doan cap 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: (((("thi doan 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: (((("thi doan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi doan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi doan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.