Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"van hoa trac snippets" » "van hoi trac snippets", "van hoa trang snippets", "van hoan tran snippets", "van hoa trac slippers"

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

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