Perhaps you should try some spelling variations:
"than dong tinh snippets" » "thanh dong tinh snippets", "phan dong tinh snippets", "thai dong tinh snippets", "than dong kinh snippets", "than dong tin snippets", "than cong tinh snippets", "than dong tinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("than dong tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than dong tinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than dong tinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than dong tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.