Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lieu tin van snippets" » "lieu tinh van snippets", "hieu tin van snippets", "lieu dien van snippets", "lieu tien van snippets", "lieu tan van snippets", "lieu tin va 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 ("lieu tin van snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lieu tin van snippets"))) OR ("locating bug core snippets")).
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