Perhaps you should try some spelling variations:
"chon vi cach snippets" » "chon vi code snippets", "chon va cach snippets", "chon vi mach snippets", "chon ve cach snippets", "cho vi cach snippets", "con vi cach snippets", "cuon vi cach snippets"
"locating bug core snippets" » "locating bug code 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: (((("chon vi cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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