Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dong duoc trinh snippets" » "dong doc trinh snippets", "dong quoc thinh snippets", "dong duoc tren snippets", "dong quoc trinh snippets", "dong duong trinh snippets", "trong duoc trinh snippets", "dong duoc trinh slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers"

Try widening your search to All Fields.

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