Perhaps you should try some spelling variations:
"trinh quan han slippers" » "tinh quang han slippers", "trinh luat han slippers", "trinh han han slippers", "trinh quan hanh slippers", "trinh quanh han slippers", "trinh quan ha slippers", "trinh quan han slippery", "trinh quan han 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: (((("dung java java snippets") or ("trinh quan han slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh quan han slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh quan han slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh quan han slippers"))) or ("locating bug code snippets"))*.