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