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