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 van snippets" » "dong hoc van snippets", "mon hoc van snippets", "mang hoc van snippets", "mong hoc dan snippets", "mong hoc va snippets", "mong hoc vat snippets"

Try widening your search to All Fields.

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