Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang va tong snippets" » "dang van tong snippets", "dang vat tong snippets", "hang va tong snippets", "dang va thong snippets", "dang va tuong snippets", "dang va trong 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: (((("dang va 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: (((("dang va tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang va tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang va tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.