Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lan trinh o snippets" » "lan trinh code snippets", "lap trinh o snippets", "dan trinh o snippets", "lan tranh o snippets", "lan trinh do snippets", "lan trinh co snippets", "lan trinh mo 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: (((("lan trinh o snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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