Perhaps you should try some spelling variations:
"doi chinh java slippers" » "doi chinh va slippers", "doi trinh java slippers", "doi think java slippers", "do chinh java slippers", "tai chinh java slippers", "hoc chinh java slippers", "doi chinh java slippery", "doi chinh java grippers"
"using java java snippets" » "using data java snippets"
"locating bug code snippets" » "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: (((("doi chinh 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: (((("doi chinh java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi chinh java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi chinh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.