Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan tang ha snippets" » "phap tang ha snippets", "phan dang ha snippets", "phan cang ha snippets", "phan lang ha snippets", "phan tang ma snippets", "phan hang hoa snippets"

Try widening your search to All Fields.

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