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