Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chon tao hoc snippets" » "chon tao code snippets", "che tao hoc snippets", "cho dao hoc snippets", "nhan tao hoc snippets", "chon thao hoc snippets", "chon cao hoc snippets", "chon bao hoc 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: (((("python using java snippets") or ("chon tao hoc snippets"))) or ("locating bug core snippets"))~.
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