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