Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi hoc cong snippets" » "thi hoc code snippets", "thi hoc co snippets", "thi cac cong snippets", "thi hoc dung snippets", "thai hoc cong snippets", "tri hoc cong snippets", "thi hoa cong 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: (((("thi hoc cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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