Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong van son snippets" » "dong van code snippets", "duong van son snippets", "dang van son snippets", "dong von son snippets", "dong van dong snippets", "dong van cong snippets", "dong van sung 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: (((("dong van son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong van son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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