Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dan cach snippets" » "lam dan cac snippets", "lam dan canh snippets", "lam nhan cach snippets", "nam dan cach snippets", "lam san cach snippets", "lam dau cach 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 cach 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 cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.