Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua trang du snippets" » "lua trang code snippets", "xuan trang du snippets", "luan tranh du snippets", "cua trung du snippets", "lua tang du snippets", "lua trung du snippets", "lua trang de 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: (((("lua trang du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua trang du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lua trang du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua trang du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.