Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung san mat snippets" » "dong san mat snippets", "dung sai mat snippets", "dung luan mat snippets", "dung gan mat snippets", "dung san bat snippets", "dung san xuat snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung san mat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung san mat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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