Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dinh duc trinh snippets" » "dinh duc thinh snippets", "dinh doc trinh snippets", "dinh qua trinh snippets", "minh duc trinh snippets", "ninh duc trinh snippets", "tinh duc trinh snippets", "dinh duc trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

Try widening your search to All Fields.

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