not import csv

If I want to do an Import,after I selected a Target vocabulary MyVOCAB and setting CSV file
Import terms not work.

I have make a file.txt so:
term_1
term_2
term_3

but seems not is the good type;
I want only insert those terms under MyVOCAB;

So in your example I think there isn't my case because I have a more simple situation:
a list of terms not hierarchy and not with related terms and synonymous.

your example:
Cyclones, Use, Storms
Disasters, Used for, Natural disasters
Storms, Used for, Cyclones
Storms, Broader Terms, Weather
Storms, Related Terms, Disasters
Tidal waves, Use, Tsunami
Tsunami, Used for, Tidal waves
Tsunami, Broader Terms, Disasters
Tsunami, Related Terms, Oceans
Weather, Narrower Terms, Rain
Weather, Narrower Terms, Storms
Weather, Narrower Terms, Wind
Weather, Related Terms, Meteorology

This (incomplete) set of data would produce a taxonomy model looking like:

-- Disasters (syn: Natural Disasters; rel: Storms)
---- Tsunami (syn: Tidal Waves; rel: Oceans
-- Weather (syn: Meteorology)
---- Storms (rel: Disasters, syn: Cyclones)
---- Rain
---- Wind