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