Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dat hang doi snippets" » "dat hang code snippets", "dat khanh doi snippets", "dat quang doi snippets", "tat thang doi snippets", "dat hang di snippets", "dat hang loi snippets", "dat huong doi 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: (((("dat hang doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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