Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hang do snippets" » "van hang code snippets", "van khang do snippets", "van hoang do snippets", "van thang do snippets", "van hang doi snippets", "van dang do snippets", "van hang di 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 hang do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hang do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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