Perhaps you should try some spelling variations:
"cong thanh hang snippets" » "dong thanh hang snippets", "cong trinh hang snippets", "cong tan hang snippets", "cong thanh hoang snippets", "cong thanh thang snippets", "cong tranh hang snippets", "cong thanh hang 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: (((("cong thanh hang snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong thanh hang snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong thanh hang snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong thanh hang snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.