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