Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"mong hoc duc snippets" » "dong hoc duc snippets", "mon hoc duc snippets", "mang hoc duc snippets", "mong hoc duoc snippets", "mong hoc nuoc snippets", "mong hoc thuc snippets"

Try widening your search to All Fields.

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