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