Perhaps you should try some spelling variations:
"dung luong java slippers" » "dung huong java slippers", "dung uong java slippers", "hung luong java slippers", "dung luong va slippers", "dung luong java slippery", "dung luong java grippers"
"dung tao code snippets" » "dung tai code snippets", "dung bao code snippets", "dung tay code snippets", "dung tao con snippets", "dung tao de snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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 luong java slippers") or ("dung tao code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung luong java slippers") OR ("dung tao code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung luong java slippers ) or ( dung tao code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung luong java slippers") or ("dung tao code snippets"))) or ("locating bug code snippets"))*.