Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung hai thu snippets" » "dung tai thu snippets", "dung ha thu snippets", "dung sai thu snippets", "dung hoai thu snippets", "dung hai thuy snippets", "dung phai thu snippets"

Try widening your search to All Fields.

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