Perhaps you should try some spelling variations:
"learning anh thuc snippets" » "learning a thuc snippets", "learning data thuc snippets", "learning _ thuc snippets", "learning am thuc snippets", "learning dan thuc snippets", "learning anh tu snippets", "learning anh thuc slippers"
"creating a a snippets" » "creating _ a snippets", "reading a a snippets", "creating a a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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