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