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