Perhaps you should try some spelling variations:
"nhan tao trinh slippers" » "nhan tao tinh slippers", "nhan tho trinh slippers", "nhan giao trinh slippers", "nhan tai trinh slippers", "nhan dan trinh slippers", "nhan va trinh slippers", "nhan tao trinh slippery", "nhan tao 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: (((("nhan tao 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: (((("nhan tao trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan tao trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan tao trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.