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