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