Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can ban tong snippets" » "can ban trong snippets", "can ban tuong snippets", "can ban thong snippets", "van ban tong snippets", "toan ban tong 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: (((("can ban tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can ban tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can ban tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can ban tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.