Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using real java snippets" » "using metal java snippets", "using raw java snippets"
"vi truong bo snippets" » "vi trung bo snippets", "va truong bo snippets", "vu truong bo snippets", "vi truong cao snippets", "vi truong dao snippets"

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

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