Perhaps you should try some spelling variations:
"tranh cac che snippets" » "trinh cac che snippets", "thanh cac che snippets", "tranh cai che snippets", "tranh cac he snippets", "tranh cac chien snippets", "tranh cac chat snippets"
"hang java java snippets" » "hang va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tranh cac che snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tranh cac che snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
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