Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che thuy te snippets" » "che thuoc te snippets", "thi thuy te snippets", "thu thuy te snippets", "che thuc te snippets", "che thuy ts snippets", "che thuy tien 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: (((("che thuy te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che thuy te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che thuy te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che thuy te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.