Perhaps you should try some spelling variations:
"van hoang tran snippets" » "van hoang tuan snippets", "van hoang thanh snippets", "van hoang van snippets", "van hoan tran snippets", "quan hoang tran snippets", "tran hoang tran snippets", "van hoang tran slippers"
"using java java snippets" » "using data java snippets", "using java 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: (((("van hoang tran 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 hoang tran snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hoang tran snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hoang tran snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.