Perhaps you should try some spelling variations:
"dong trong dan snippets" » "duong trong dan snippets", "dung trong dan snippets", "cong trong dan snippets", "dong trong dang snippets", "dong trong san snippets", "dong trong tan snippets", "dong trong dan slippers"
"using low java snippets" » "using low java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong trong dan snippets") or ("using low java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong trong dan snippets") OR ("using low java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong trong dan snippets ) or ( using low java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trong dan snippets") or ("using low java snippets"))) or ("locating bug code snippets"))*.