Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"van dinh java slippers" » "van trinh java slippers", "van dinh va slippers", "van minh java slippers", "van dich java slippers", "va dinh java slippers", "van dinh java slippery", "van dinh 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: (((("van dinh 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: (((("van dinh java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van dinh java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van dinh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.