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