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