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