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 __   _      ___     _    _      ___              
| || | ||   / _ \\  | |  | ||   / _ \\      ___   
| '--' ||  / //\ \\ | |/\| ||  | / \ ||    /   || 
| .--. || |  ___  |||  /\  ||  | \_/ ||   | [] || 
|_|| |_|| |_||  |_|||_// \_||   \___//     \__ || 
`-`  `-`  `-`   `-` `-`   `-`   `---`       -|_|| 
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Text this: Content-based Approach for Vietnamese Spam SMS Filtering