Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dan dong snippets" » "lam van dong snippets", "lam dan dung snippets", "lam dao dong snippets", "nam dan dong snippets", "lam san dong snippets", "lam dau dong 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: (((("lam dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam dan dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dan dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.