Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"rong cho don snippets" » "trong cho don snippets", "dong cho don snippets", "luong cho don snippets", "rong cho dong snippets", "rong cho lon snippets", "rong cho doi 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: (((("rong cho don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("rong cho don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( rong cho don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("rong cho don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.