Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh va di snippets" » "doanh va di snippets", "hanh va di snippets", "anh va di snippets", "danh va dai snippets", "danh va doi snippets", "danh va dia 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 va di 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 va di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh va di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh va di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.