Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoi tan cua snippets" » "hoi tan code snippets", "hoi dan cua snippets", "hoi tai cua snippets", "hai tan cua snippets", "hoi than cua snippets", "hoi tang cua snippets", "hoi toan cua 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: (((("hoi tan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi tan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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