Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"hanh lam trinh snippets" » "hanh lap trinh snippets", "hanh lam tinh snippets", "hanh tao trinh snippets", "thanh lap trinh snippets", "hanh kem trinh snippets", "hanh va trinh snippets", "hanh lam 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: (((("hanh lam 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: (((("hanh lam trinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( hanh lam trinh snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh lam trinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.