Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"pha tao mach snippets" » "pha tao bac snippets", "pha tao may snippets", "pha tim mach snippets", "pha tap mach snippets", "pha tan mach snippets", "pha vao mach snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("pha tao mach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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