Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"vi truong lon snippets" » "vi truong long snippets", "vi truong son snippets", "vi truong ton snippets", "vi trung lon snippets", "va truong lon snippets", "vu truong lon 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: (((("vi truong lon snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi truong lon snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( vi truong lon snippets ) or ( using java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vi truong lon snippets") or ("using java java snippets"))) or ("locating bugs code snippets"))*.