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