Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"rong cho lon snippets" » "trong cho lon snippets", "dong cho lon snippets", "luong cho lon snippets", "rong cho cong snippets", "rong chon loc 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 lon 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 lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( rong cho lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("rong cho lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.