Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"can think java snippets" » "can trinh java snippets", "can thi java snippets", "van thinh java snippets", "tan thinh java snippets"
"dung cac cong snippets" » "luong cac cong snippets", "dung cho cong snippets", "dung tai cong snippets", "dung cua cong 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: (((("can think java snippets") or ("dung cac cong snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can think java snippets") OR ("dung cac cong snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( can think java snippets ) or ( dung cac cong snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can think java snippets") or ("dung cac cong snippets"))) or ("locating bugs code snippets"))*.