Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"luan hoan java slippers" » "luan van java slippers", "luan hoan va slippers", "luan hoan java slippery", "luan hoan java grippers"
"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: (((("using java java snippets") or ("luan hoan java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("luan hoan java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( luan hoan java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("luan hoan java slippers"))) or ("locating bug code snippets"))*.