Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java can snippets" » "using data can snippets"
"van duong code snippets" » "van duong co snippets", "van duong cong snippets", "van duong che snippets", "van dong code snippets", "van dung code snippets", "van phong code snippets"

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

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