Perhaps you should try some spelling variations:
"cong cua trinh slippers" » "cong qua trinh slippers", "cong cua tinh slippers", "cong xuan trinh slippers", "cong cu trinh slippers", "dong cua trinh slippers", "huong cua trinh slippers", "cong cua trinh slippery", "cong cua trinh 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 cua trinh 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 cua trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cua trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cua trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.