Perhaps you should try some spelling variations:
"dang hanh java snippets" » "dang thanh java snippets", "ban hanh java snippets", "dang van java snippets", "dang hanh va snippets"
"dung cho con snippets" » "dung cho cong snippets", "dung cho lon snippets", "dung cho can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dung cho con snippets") or ("dang hanh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cho con snippets") OR ("dang hanh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cho con snippets ) or ( dang hanh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cho con snippets") or ("dang hanh java snippets"))) or ("locating bug code snippets"))*.