Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham hang o2 snippets" » "pham hang code snippets", "pham hoang o2 snippets", "pham hong o2 snippets", "pham hanh o2 snippets", "pham hang hoa snippets", "pham hang rok snippets", "pham hang ton snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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