Perhaps you should try some spelling variations:
"duy think java slippers" » "duy trinh java slippers", "duy thinh java slippers", "duc thinh java slippers", "duy thong java slippers", "duy think java slippery", "duy think java grippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data 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: (((("duy think java slippers") or ("using data java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy think java slippers") OR ("using data java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duy think java slippers ) or ( using data java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duy think java slippers") or ("using data java snippets"))) or ("locating bug code snippets"))*.