Perhaps you should try some spelling variations:
"cong hoang duc snippets" » "cong hoan duc snippets", "thong hoang duc snippets", "vuong hoang duc snippets", "cong hong duc snippets", "cong hoang duy snippets", "cong hoang du snippets", "cong hoang duc 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 hoang duc 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 hoang duc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hoang duc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoang duc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.