Perhaps you should try some spelling variations:
"phap hoang code snippets" » "phap hoan code snippets", "pham hoang code snippets", "phap nang code snippets", "phap hoang de snippets", "phap hoang cong snippets", "phap hoang cd snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phap hoang code snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap hoang code snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap hoang code snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
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