Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong cac do snippets" » "trong cac do snippets", "phong cach do snippets", "thong cua do snippets", "thong cac don snippets", "thong cac doi snippets", "thong cac du 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: (((("thong cac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong cac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong cac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong cac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.