Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach tich he snippets" » "mach tich he snippets", "cac tinh he snippets", "cach tieu he snippets", "cach tich ho snippets", "cach trinh he snippets", "cach tich hop 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: (((("cach tich he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach tich he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach tich he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach tich he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.