Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi thao con snippets" » "thi thanh con snippets", "thi thu con snippets", "thi thuy con snippets", "thi tao con snippets", "thi thai cong snippets", "thi theo 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: (((("thi thao 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: (((("thi thao con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi thao con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi thao con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.