Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham mach hoc snippets" » "ham sach hoc snippets", "pham sach hoc snippets", "pham bach hoc snippets", "ham cach hoc snippets", "ham dich hoc snippets", "ham anh hoc 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: (((("ham mach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham mach hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham mach hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham mach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.