Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van sinh cau snippets" » "van sinh code snippets", "van minh cau snippets", "va sinh cau snippets", "van dinh cau snippets", "van trinh cau snippets", "van sinh vat snippets", "van sinh va 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: (((("van sinh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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