Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc chon van snippets" » "hoc cho van snippets", "hoc chan van snippets", "hoc con van snippets", "hoc chon va snippets", "hoc thong van snippets", "hoc phong van snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc chon van snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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