Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh sai co snippets" » "dung sai co snippets", "danh bat co snippets", "danh dau co snippets", "danh mai co snippets", "danh tai co snippets", "danh soi co 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 sai co 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 sai co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh sai co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh sai co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.