Perhaps you should try some spelling variations:
"trong toan cong snippets" » "trong toan code snippets", "truong toan cong snippets", "trong tan cong snippets", "trong hoan cong snippets", "trong tran cong snippets", "trong toan thong snippets", "trong doan cuong snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trong toan cong snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong toan cong snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trong toan cong snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong toan cong snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.