Perhaps you should try some spelling variations:
"giang kinh trac slippers" » "gian kinh trac slippers", "nang kinh trac slippers", "giang benh trac slippers", "giang sinh trac slippers", "giang anh trac slippers", "giang kinh bac slippers", "giang kinh trac slippery", "giang kinh trac 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 ("giang kinh trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("giang kinh trac slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( giang kinh trac slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("giang kinh trac slippers"))) or ("locating bug code snippets"))*.