Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java cho snippets" » "using data cho snippets", "using java can snippets", "using java how snippets", "using va cho snippets"
"dung luan code snippets" » "dung luan cong snippets", "dung luan che snippets", "dung luan de snippets"

Try widening your search to All Fields.

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 cho snippets") or ("dung luan code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java cho snippets") OR ("dung luan code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using java cho snippets ) or ( dung luan code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java cho snippets") or ("dung luan code snippets"))) or ("locating bugs code snippets"))*.