Perhaps you should try some spelling variations:
"duong sinh liu snippets" » "duong minh liu snippets", "duong manh liu snippets", "trong sinh liu snippets", "duong sinh li snippets", "duong binh lieu snippets", "duong sinh dieu snippets", "duong sinh liu 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: (((("duong sinh liu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong sinh liu snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong sinh liu snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong sinh liu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.