Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tao lan hung snippets" » "tao van hung snippets", "tao luan chung snippets", "tao lan phuong snippets", "tao luan hung snippets", "cao lan hung snippets", "tao ban hung snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tao lan hung snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao lan hung snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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