Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thap du cau snippets" » "thap du code snippets", "thap cu cau snippets", "thap da cau snippets", "thap di cau snippets", "phap du cau snippets", "tap du cau snippets", "than du cau snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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