Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat lai lon snippets" » "nhat lam lon snippets", "nhat loi lon snippets", "nhat tai lon snippets", "nhat lai long snippets", "nhat bai lon snippets", "nhat hai long 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: (((("nhat lai 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: (((("nhat lai lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat lai lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat lai lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.