Using quá, rất & lắm to emphasize something is very common in Vietnamese.
Very + adjective = adjective + lắm
This flower is very beautiful
like/want something + very much = subject + verb + object + lắm
Rất is the same as lắm, but is placed before the adjective or verb: rất + adjective/verb
This season, it rains very hard.
He likes playing tennis very much.
Quá is used to exlaim something, either very good, or very bad. It can be placed either before or after the adjective: adjective + quá or quá + adjective
This camera is very durable!
That pair of shoes are too expensive!