Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"van truong bo snippets" » "tang truong bo snippets", "xuan truong bo snippets", "vien truong bo snippets", "van truong cao snippets", "van truong dao snippets"
"using java java snippets" » "using data java 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 truong bo 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 truong bo snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( van truong bo snippets ) or ( using java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van truong bo snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))*.