Perhaps you should try some spelling variations:
"dang sinh java snippets" » "dang dinh java snippets", "khang sinh java snippets", "dang hanh java snippets", "dang trinh java snippets", "dang using java snippets", "dang sinh va snippets"
"dung cao de snippets" » "duong cao de snippets", "dung cho de snippets", "dung co de snippets", "dung nao de 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 cao de snippets") or ("dang sinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cao de snippets") OR ("dang sinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cao de snippets ) or ( dang sinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cao de snippets") or ("dang sinh java snippets"))) or ("locating bug code snippets"))*.