Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh dau cu snippets" » "lanh dao cu snippets", "hang dau cu snippets", "xang dau cu snippets", "danh dau cua snippets", "danh dau tu snippets", "danh dau 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 dau cu 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 dau cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh dau cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh dau cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.