Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trong su hoc snippets" » "trong su code snippets", "trong san hoc snippets", "trong thu hoc snippets", "trong qua hoc snippets", "trong tu hoc snippets", "trong du hoc snippets", "trong so hoc snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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