Perhaps you should try some spelling variations:
"trong dinh doc snippets" » "truong dinh doc snippets", "trong kinh doc snippets", "trong sinh doc snippets", "trong dinh duc snippets", "trong dinh ngoc snippets", "trong trinh doc snippets"
"dung java java snippets" » "dung va java 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 java java snippets") or ("trong dinh doc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trong dinh doc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trong dinh doc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trong dinh doc snippets"))) or ("locating bug code snippets"))*.