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