Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dac xuan trinh snippets" » "dac qua trinh snippets", "dac xuan dinh snippets", "dac xuan kinh snippets", "dao xuan trinh snippets", "bach xuan trinh snippets", "dang xuan trinh snippets", "dac xuan trinh slippers"
"dung va java snippets" » "dung java java snippets", "dung va java slippers"

Try widening your search to All Fields.

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