Perhaps you should try some spelling variations:
"cong lang tao slippers" » "cong vang tao slippers", "cong luong tao slippers", "cong quang tao slippers", "cong sang tao slippers", "cong nang tao slippers", "cong lang cao slippers", "cong lang tao slippery", "cong lang tao grippers"
"dung java java snippets" » "dung va java 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: (((("cong lang tao slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong lang tao slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong lang tao slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong lang tao slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.