Perhaps you should try some spelling variations:
"dung dat lieu snippets" » "dung va lieu snippets", "dung tai lieu snippets", "dung vat lieu snippets", "dung da lieu snippets", "dung dat hieu snippets"
"dung ung co snippets" » "dung trung co snippets", "dung quang co snippets", "dung chung co snippets", "dung dung co snippets", "dung dung cho snippets", "dung duong co 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 dat lieu snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dat lieu snippets") OR ("dung ung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat lieu snippets ) or ( dung ung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat lieu snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))*.